Finding the Third Proportional to 518,451 and 741,388.50

Step by Step Solution

1. Step 1: Write the proportion equation
   518,451 : 741,388.50 = 741,388.50 : x
2. Step 2: Convert to fraction form
   518,451/741,388.50 = 741,388.50/x
3. Step 3: Cross multiply
   518,451x = 741,388.50 × 741,388.50
4. Step 4: Simplify right side
   518,451x = 549,656,907,932.25
5. Step 5: Solve for x
   x = 549,656,907,932.25/518,451
6. Step 6: Final answer
   x = 1,060,190.66