Finding the Third Proportional to 61,089.19 and 80,326.69

Step by Step Solution

1. Step 1: Write the proportion equation
   61,089.19 : 80,326.69 = 80,326.69 : x
2. Step 2: Convert to fraction form
   61,089.19/80,326.69 = 80,326.69/x
3. Step 3: Cross multiply
   61,089.19x = 80,326.69 × 80,326.69
4. Step 4: Simplify right side
   61,089.19x = 6,452,376,724.72
5. Step 5: Solve for x
   x = 6,452,376,724.72/61,089.19
6. Step 6: Final answer
   x = 105,622.24