Finding the Third Proportional to 46,615.50 and 72,715.50

Step by Step Solution

1. Step 1: Write the proportion equation
   46,615.50 : 72,715.50 = 72,715.50 : x
2. Step 2: Convert to fraction form
   46,615.50/72,715.50 = 72,715.50/x
3. Step 3: Cross multiply
   46,615.50x = 72,715.50 × 72,715.50
4. Step 4: Simplify right side
   46,615.50x = 5,287,543,940.25
5. Step 5: Solve for x
   x = 5,287,543,940.25/46,615.50
6. Step 6: Final answer
   x = 113,428.88