Finding the Third Proportional to 60,238.69 and 129,802.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,238.69 : 129,802.50 = 129,802.50 : x
2. Step 2: Convert to fraction form
   60,238.69/129,802.50 = 129,802.50/x
3. Step 3: Cross multiply
   60,238.69x = 129,802.50 × 129,802.50
4. Step 4: Simplify right side
   60,238.69x = 16,848,689,006.25
5. Step 5: Solve for x
   x = 16,848,689,006.25/60,238.69
6. Step 6: Final answer
   x = 279,698.81