Finding the Third Proportional to 71,439 and 105,025

Step by Step Solution

1. Step 1: Write the proportion equation
   71,439 : 105,025 = 105,025 : x
2. Step 2: Convert to fraction form
   71,439/105,025 = 105,025/x
3. Step 3: Cross multiply
   71,439x = 105,025 × 105,025
4. Step 4: Simplify right side
   71,439x = 11,030,250,625
5. Step 5: Solve for x
   x = 11,030,250,625/71,439
6. Step 6: Final answer
   x = 154,400.97