Finding the Third Proportional to 67,840.88 and 99,726.56

Step by Step Solution

1. Step 1: Write the proportion equation
   67,840.88 : 99,726.56 = 99,726.56 : x
2. Step 2: Convert to fraction form
   67,840.88/99,726.56 = 99,726.56/x
3. Step 3: Cross multiply
   67,840.88x = 99,726.56 × 99,726.56
4. Step 4: Simplify right side
   67,840.88x = 9,945,387,268.07
5. Step 5: Solve for x
   x = 9,945,387,268.07/67,840.88
6. Step 6: Final answer
   x = 146,598.75