Finding the Third Proportional to 67,326.19 and 99,687.38

Step by Step Solution

1. Step 1: Write the proportion equation
   67,326.19 : 99,687.38 = 99,687.38 : x
2. Step 2: Convert to fraction form
   67,326.19/99,687.38 = 99,687.38/x
3. Step 3: Cross multiply
   67,326.19x = 99,687.38 × 99,687.38
4. Step 4: Simplify right side
   67,326.19x = 9,937,572,734.39
5. Step 5: Solve for x
   x = 9,937,572,734.39/67,326.19
6. Step 6: Final answer
   x = 147,603.38