Finding the Third Proportional to 70,647.50 and 99,012.25

Step by Step Solution

1. Step 1: Write the proportion equation
   70,647.50 : 99,012.25 = 99,012.25 : x
2. Step 2: Convert to fraction form
   70,647.50/99,012.25 = 99,012.25/x
3. Step 3: Cross multiply
   70,647.50x = 99,012.25 × 99,012.25
4. Step 4: Simplify right side
   70,647.50x = 9,803,425,650.06
5. Step 5: Solve for x
   x = 9,803,425,650.06/70,647.50
6. Step 6: Final answer
   x = 138,765.36