Finding the Third Proportional to 519,373 and 776,989.50

Step by Step Solution

1. Step 1: Write the proportion equation
   519,373 : 776,989.50 = 776,989.50 : x
2. Step 2: Convert to fraction form
   519,373/776,989.50 = 776,989.50/x
3. Step 3: Cross multiply
   519,373x = 776,989.50 × 776,989.50
4. Step 4: Simplify right side
   519,373x = 603,712,683,110.25
5. Step 5: Solve for x
   x = 603,712,683,110.25/519,373
6. Step 6: Final answer
   x = 1,162,387.50