Finding the Third Proportional to 72,031.50 and 109,041

Step by Step Solution

1. Step 1: Write the proportion equation
   72,031.50 : 109,041 = 109,041 : x
2. Step 2: Convert to fraction form
   72,031.50/109,041 = 109,041/x
3. Step 3: Cross multiply
   72,031.50x = 109,041 × 109,041
4. Step 4: Simplify right side
   72,031.50x = 11,889,939,681
5. Step 5: Solve for x
   x = 11,889,939,681/72,031.50
6. Step 6: Final answer
   x = 165,065.83