Finding the Third Proportional to 72,001.50 and 98,878.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,001.50 : 98,878.50 = 98,878.50 : x
2. Step 2: Convert to fraction form
   72,001.50/98,878.50 = 98,878.50/x
3. Step 3: Cross multiply
   72,001.50x = 98,878.50 × 98,878.50
4. Step 4: Simplify right side
   72,001.50x = 9,776,957,762.25
5. Step 5: Solve for x
   x = 9,776,957,762.25/72,001.50
6. Step 6: Final answer
   x = 135,788.25