Finding the Third Proportional to 60,430.50 and 129,606

Step by Step Solution

1. Step 1: Write the proportion equation
   60,430.50 : 129,606 = 129,606 : x
2. Step 2: Convert to fraction form
   60,430.50/129,606 = 129,606/x
3. Step 3: Cross multiply
   60,430.50x = 129,606 × 129,606
4. Step 4: Simplify right side
   60,430.50x = 16,797,715,236
5. Step 5: Solve for x
   x = 16,797,715,236/60,430.50
6. Step 6: Final answer
   x = 277,967.50