Finding the Third Proportional to 72,017.16 and 103,743.28

Step by Step Solution

1. Step 1: Write the proportion equation
   72,017.16 : 103,743.28 = 103,743.28 : x
2. Step 2: Convert to fraction form
   72,017.16/103,743.28 = 103,743.28/x
3. Step 3: Cross multiply
   72,017.16x = 103,743.28 × 103,743.28
4. Step 4: Simplify right side
   72,017.16x = 10,762,668,404.52
5. Step 5: Solve for x
   x = 10,762,668,404.52/72,017.16
6. Step 6: Final answer
   x = 149,445.90