Finding the Third Proportional to 271,737 and 391,405.50

Step by Step Solution

1. Step 1: Write the proportion equation
   271,737 : 391,405.50 = 391,405.50 : x
2. Step 2: Convert to fraction form
   271,737/391,405.50 = 391,405.50/x
3. Step 3: Cross multiply
   271,737x = 391,405.50 × 391,405.50
4. Step 4: Simplify right side
   271,737x = 153,198,265,430.25
5. Step 5: Solve for x
   x = 153,198,265,430.25/271,737
6. Step 6: Final answer
   x = 563,774.04