Finding the Third Proportional to 70,801.50 and 98,991.38

Step by Step Solution

1. Step 1: Write the proportion equation
   70,801.50 : 98,991.38 = 98,991.38 : x
2. Step 2: Convert to fraction form
   70,801.50/98,991.38 = 98,991.38/x
3. Step 3: Cross multiply
   70,801.50x = 98,991.38 × 98,991.38
4. Step 4: Simplify right side
   70,801.50x = 9,799,292,324.39
5. Step 5: Solve for x
   x = 9,799,292,324.39/70,801.50
6. Step 6: Final answer
   x = 138,405.15