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Finding the Third Proportional to 198,453.75 and 298,128.75

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Solution

The third proportional to 198,453.75 and 298,128.75 is: 447,866.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,453.75 : 298,128.75 = 298,128.75 : x
  2. Step 2: Convert to fraction form
    198,453.75/298,128.75 = 298,128.75/x
  3. Step 3: Cross multiply
    198,453.75x = 298,128.75 × 298,128.75
  4. Step 4: Simplify right side
    198,453.75x = 88,880,751,576.56
  5. Step 5: Solve for x
    x = 88,880,751,576.56/198,453.75
  6. Step 6: Final answer
    x = 447,866.32

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