Finding the Third Proportional to 457,048.50 and 990,372

Step by Step Solution

1. Step 1: Write the proportion equation
   457,048.50 : 990,372 = 990,372 : x
2. Step 2: Convert to fraction form
   457,048.50/990,372 = 990,372/x
3. Step 3: Cross multiply
   457,048.50x = 990,372 × 990,372
4. Step 4: Simplify right side
   457,048.50x = 980,836,698,384
5. Step 5: Solve for x
   x = 980,836,698,384/457,048.50
6. Step 6: Final answer
   x = 2,146,023.23