Finding the Third Proportional to 457,830 and 994,470.75

Step by Step Solution

1. Step 1: Write the proportion equation
   457,830 : 994,470.75 = 994,470.75 : x
2. Step 2: Convert to fraction form
   457,830/994,470.75 = 994,470.75/x
3. Step 3: Cross multiply
   457,830x = 994,470.75 × 994,470.75
4. Step 4: Simplify right side
   457,830x = 988,972,072,605.56
5. Step 5: Solve for x
   x = 988,972,072,605.56/457,830
6. Step 6: Final answer
   x = 2,160,129.46