Finding the Third Proportional to 33,691.50 and 71,490

Step by Step Solution

1. Step 1: Write the proportion equation
   33,691.50 : 71,490 = 71,490 : x
2. Step 2: Convert to fraction form
   33,691.50/71,490 = 71,490/x
3. Step 3: Cross multiply
   33,691.50x = 71,490 × 71,490
4. Step 4: Simplify right side
   33,691.50x = 5,110,820,100
5. Step 5: Solve for x
   x = 5,110,820,100/33,691.50
6. Step 6: Final answer
   x = 151,694.64