Finding the Third Proportional to 69,589.13 and 105,031.69

Step by Step Solution

1. Step 1: Write the proportion equation
   69,589.13 : 105,031.69 = 105,031.69 : x
2. Step 2: Convert to fraction form
   69,589.13/105,031.69 = 105,031.69/x
3. Step 3: Cross multiply
   69,589.13x = 105,031.69 × 105,031.69
4. Step 4: Simplify right side
   69,589.13x = 11,031,655,379.10
5. Step 5: Solve for x
   x = 11,031,655,379.10/69,589.13
6. Step 6: Final answer
   x = 158,525.57