Finding the Third Proportional to 109,243.69 and 156,790.69

Step by Step Solution

1. Step 1: Write the proportion equation
   109,243.69 : 156,790.69 = 156,790.69 : x
2. Step 2: Convert to fraction form
   109,243.69/156,790.69 = 156,790.69/x
3. Step 3: Cross multiply
   109,243.69x = 156,790.69 × 156,790.69
4. Step 4: Simplify right side
   109,243.69x = 24,583,319,686.72
5. Step 5: Solve for x
   x = 24,583,319,686.72/109,243.69
6. Step 6: Final answer
   x = 225,031.95