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Finding the Third Proportional to 319,605.75 and 699,349.50

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Solution

The third proportional to 319,605.75 and 699,349.50 is: 1,530,290.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,605.75 : 699,349.50 = 699,349.50 : x
  2. Step 2: Convert to fraction form
    319,605.75/699,349.50 = 699,349.50/x
  3. Step 3: Cross multiply
    319,605.75x = 699,349.50 × 699,349.50
  4. Step 4: Simplify right side
    319,605.75x = 489,089,723,150.25
  5. Step 5: Solve for x
    x = 489,089,723,150.25/319,605.75
  6. Step 6: Final answer
    x = 1,530,290.75

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