Finding the Third Proportional to 146,648,061.75 and 318,518,828.25

Step by Step Solution

1. Step 1: Write the proportion equation
   146,648,061.75 : 318,518,828.25 = 318,518,828.25 : x
2. Step 2: Convert to fraction form
   146,648,061.75/318,518,828.25 = 318,518,828.25/x
3. Step 3: Cross multiply
   146,648,061.75x = 318,518,828.25 × 318,518,828.25
4. Step 4: Simplify right side
   146,648,061.75x = 101,454,243,949,752,992
5. Step 5: Solve for x
   x = 101,454,243,949,752,992/146,648,061.75
6. Step 6: Final answer
   x = 691,821,240.18