Finding the Third Proportional to 87,158.50 and 188,141

Step by Step Solution

1. Step 1: Write the proportion equation
   87,158.50 : 188,141 = 188,141 : x
2. Step 2: Convert to fraction form
   87,158.50/188,141 = 188,141/x
3. Step 3: Cross multiply
   87,158.50x = 188,141 × 188,141
4. Step 4: Simplify right side
   87,158.50x = 35,397,035,881
5. Step 5: Solve for x
   x = 35,397,035,881/87,158.50
6. Step 6: Final answer
   x = 406,122.59