Finding the Third Proportional to 76,226.06 and 99,030.09

Step by Step Solution

1. Step 1: Write the proportion equation
   76,226.06 : 99,030.09 = 99,030.09 : x
2. Step 2: Convert to fraction form
   76,226.06/99,030.09 = 99,030.09/x
3. Step 3: Cross multiply
   76,226.06x = 99,030.09 × 99,030.09
4. Step 4: Simplify right side
   76,226.06x = 9,806,959,468.13
5. Step 5: Solve for x
   x = 9,806,959,468.13/76,226.06
6. Step 6: Final answer
   x = 128,656.25