Finding the Third Proportional to 642,883.50 and 1,400,055

Step by Step Solution

1. Step 1: Write the proportion equation
   642,883.50 : 1,400,055 = 1,400,055 : x
2. Step 2: Convert to fraction form
   642,883.50/1,400,055 = 1,400,055/x
3. Step 3: Cross multiply
   642,883.50x = 1,400,055 × 1,400,055
4. Step 4: Simplify right side
   642,883.50x = 1,960,154,003,025
5. Step 5: Solve for x
   x = 1,960,154,003,025/642,883.50
6. Step 6: Final answer
   x = 3,049,003.44