Finding the Third Proportional to 35,059.50 and 77,131

Step by Step Solution

1. Step 1: Write the proportion equation
   35,059.50 : 77,131 = 77,131 : x
2. Step 2: Convert to fraction form
   35,059.50/77,131 = 77,131/x
3. Step 3: Cross multiply
   35,059.50x = 77,131 × 77,131
4. Step 4: Simplify right side
   35,059.50x = 5,949,191,161
5. Step 5: Solve for x
   x = 5,949,191,161/35,059.50
6. Step 6: Final answer
   x = 169,688.42