Finding the Third Proportional to 402,292 and 607,538.50

Step by Step Solution

1. Step 1: Write the proportion equation
   402,292 : 607,538.50 = 607,538.50 : x
2. Step 2: Convert to fraction form
   402,292/607,538.50 = 607,538.50/x
3. Step 3: Cross multiply
   402,292x = 607,538.50 × 607,538.50
4. Step 4: Simplify right side
   402,292x = 369,103,028,982.25
5. Step 5: Solve for x
   x = 369,103,028,982.25/402,292
6. Step 6: Final answer
   x = 917,500.30