Finding the Third Proportional to 28,031.50 and 42,165

Step by Step Solution

1. Step 1: Write the proportion equation
   28,031.50 : 42,165 = 42,165 : x
2. Step 2: Convert to fraction form
   28,031.50/42,165 = 42,165/x
3. Step 3: Cross multiply
   28,031.50x = 42,165 × 42,165
4. Step 4: Simplify right side
   28,031.50x = 1,777,887,225
5. Step 5: Solve for x
   x = 1,777,887,225/28,031.50
6. Step 6: Final answer
   x = 63,424.62