Finding the Third Proportional to 639,182 and 1,357,187.50

Step by Step Solution

1. Step 1: Write the proportion equation
   639,182 : 1,357,187.50 = 1,357,187.50 : x
2. Step 2: Convert to fraction form
   639,182/1,357,187.50 = 1,357,187.50/x
3. Step 3: Cross multiply
   639,182x = 1,357,187.50 × 1,357,187.50
4. Step 4: Simplify right side
   639,182x = 1,841,957,910,156.25
5. Step 5: Solve for x
   x = 1,841,957,910,156.25/639,182
6. Step 6: Final answer
   x = 2,881,742.46