Finding the Third Proportional to 70,645.75 and 99,009.88

Step by Step Solution

1. Step 1: Write the proportion equation
   70,645.75 : 99,009.88 = 99,009.88 : x
2. Step 2: Convert to fraction form
   70,645.75/99,009.88 = 99,009.88/x
3. Step 3: Cross multiply
   70,645.75x = 99,009.88 × 99,009.88
4. Step 4: Simplify right side
   70,645.75x = 9,802,955,347.52
5. Step 5: Solve for x
   x = 9,802,955,347.52/70,645.75
6. Step 6: Final answer
   x = 138,762.14