Finding the Third Proportional to 60,415.50 and 129,582

Step by Step Solution

1. Step 1: Write the proportion equation
   60,415.50 : 129,582 = 129,582 : x
2. Step 2: Convert to fraction form
   60,415.50/129,582 = 129,582/x
3. Step 3: Cross multiply
   60,415.50x = 129,582 × 129,582
4. Step 4: Simplify right side
   60,415.50x = 16,791,494,724
5. Step 5: Solve for x
   x = 16,791,494,724/60,415.50
6. Step 6: Final answer
   x = 277,933.56