Finding the Third Proportional to 125,120 and 260,594.50

Step by Step Solution

1. Step 1: Write the proportion equation
   125,120 : 260,594.50 = 260,594.50 : x
2. Step 2: Convert to fraction form
   125,120/260,594.50 = 260,594.50/x
3. Step 3: Cross multiply
   125,120x = 260,594.50 × 260,594.50
4. Step 4: Simplify right side
   125,120x = 67,909,493,430.25
5. Step 5: Solve for x
   x = 67,909,493,430.25/125,120
6. Step 6: Final answer
   x = 542,754.90