Finding the Third Proportional to 637,487.72 and 1,377,734.38

Step by Step Solution

1. Step 1: Write the proportion equation
   637,487.72 : 1,377,734.38 = 1,377,734.38 : x
2. Step 2: Convert to fraction form
   637,487.72/1,377,734.38 = 1,377,734.38/x
3. Step 3: Cross multiply
   637,487.72x = 1,377,734.38 × 1,377,734.38
4. Step 4: Simplify right side
   637,487.72x = 1,898,152,018,820.05
5. Step 5: Solve for x
   x = 1,898,152,018,820.05/637,487.72
6. Step 6: Final answer
   x = 2,977,550.72