Finding the Third Proportional to 519,480 and 779,233.50

Step by Step Solution

1. Step 1: Write the proportion equation
   519,480 : 779,233.50 = 779,233.50 : x
2. Step 2: Convert to fraction form
   519,480/779,233.50 = 779,233.50/x
3. Step 3: Cross multiply
   519,480x = 779,233.50 × 779,233.50
4. Step 4: Simplify right side
   519,480x = 607,204,847,522.25
5. Step 5: Solve for x
   x = 607,204,847,522.25/519,480
6. Step 6: Final answer
   x = 1,168,870.50