Finding the Third Proportional to 125,019 and 260,401.50

Step by Step Solution

1. Step 1: Write the proportion equation
   125,019 : 260,401.50 = 260,401.50 : x
2. Step 2: Convert to fraction form
   125,019/260,401.50 = 260,401.50/x
3. Step 3: Cross multiply
   125,019x = 260,401.50 × 260,401.50
4. Step 4: Simplify right side
   125,019x = 67,808,941,202.25
5. Step 5: Solve for x
   x = 67,808,941,202.25/125,019
6. Step 6: Final answer
   x = 542,389.09