Finding the Third Proportional to 60,624.50 and 142,908.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,624.50 : 142,908.50 = 142,908.50 : x
2. Step 2: Convert to fraction form
   60,624.50/142,908.50 = 142,908.50/x
3. Step 3: Cross multiply
   60,624.50x = 142,908.50 × 142,908.50
4. Step 4: Simplify right side
   60,624.50x = 20,422,839,372.25
5. Step 5: Solve for x
   x = 20,422,839,372.25/60,624.50
6. Step 6: Final answer
   x = 336,874.36