Finding the Third Proportional to 68,347.69 and 102,520.69

Step by Step Solution

1. Step 1: Write the proportion equation
   68,347.69 : 102,520.69 = 102,520.69 : x
2. Step 2: Convert to fraction form
   68,347.69/102,520.69 = 102,520.69/x
3. Step 3: Cross multiply
   68,347.69x = 102,520.69 × 102,520.69
4. Step 4: Simplify right side
   68,347.69x = 10,510,491,365.47
5. Step 5: Solve for x
   x = 10,510,491,365.47/68,347.69
6. Step 6: Final answer
   x = 153,779.77