Finding the Third Proportional to 689,404.50 and 1,029,935.25

Step by Step Solution

1. Step 1: Write the proportion equation
   689,404.50 : 1,029,935.25 = 1,029,935.25 : x
2. Step 2: Convert to fraction form
   689,404.50/1,029,935.25 = 1,029,935.25/x
3. Step 3: Cross multiply
   689,404.50x = 1,029,935.25 × 1,029,935.25
4. Step 4: Simplify right side
   689,404.50x = 1,060,766,619,192.56
5. Step 5: Solve for x
   x = 1,060,766,619,192.56/689,404.50
6. Step 6: Final answer
   x = 1,538,670.87