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Finding the Third Proportional to 313,428.75 and 470,139.75

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Solution

The third proportional to 313,428.75 and 470,139.75 is: 705,204.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,428.75 : 470,139.75 = 470,139.75 : x
  2. Step 2: Convert to fraction form
    313,428.75/470,139.75 = 470,139.75/x
  3. Step 3: Cross multiply
    313,428.75x = 470,139.75 × 470,139.75
  4. Step 4: Simplify right side
    313,428.75x = 221,031,384,530.06
  5. Step 5: Solve for x
    x = 221,031,384,530.06/313,428.75
  6. Step 6: Final answer
    x = 705,204.56

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