Finding the Third Proportional to 48,640.50 and 72,312.75

Step by Step Solution

1. Step 1: Write the proportion equation
   48,640.50 : 72,312.75 = 72,312.75 : x
2. Step 2: Convert to fraction form
   48,640.50/72,312.75 = 72,312.75/x
3. Step 3: Cross multiply
   48,640.50x = 72,312.75 × 72,312.75
4. Step 4: Simplify right side
   48,640.50x = 5,229,133,812.56
5. Step 5: Solve for x
   x = 5,229,133,812.56/48,640.50
6. Step 6: Final answer
   x = 107,505.76