Finding the Third Proportional to 780,397.50 and 1,702,605

Step by Step Solution

1. Step 1: Write the proportion equation
   780,397.50 : 1,702,605 = 1,702,605 : x
2. Step 2: Convert to fraction form
   780,397.50/1,702,605 = 1,702,605/x
3. Step 3: Cross multiply
   780,397.50x = 1,702,605 × 1,702,605
4. Step 4: Simplify right side
   780,397.50x = 2,898,863,786,025
5. Step 5: Solve for x
   x = 2,898,863,786,025/780,397.50
6. Step 6: Final answer
   x = 3,714,599.02