Finding the Third Proportional to 87,320.25 and 188,550

Step by Step Solution

1. Step 1: Write the proportion equation
   87,320.25 : 188,550 = 188,550 : x
2. Step 2: Convert to fraction form
   87,320.25/188,550 = 188,550/x
3. Step 3: Cross multiply
   87,320.25x = 188,550 × 188,550
4. Step 4: Simplify right side
   87,320.25x = 35,551,102,500
5. Step 5: Solve for x
   x = 35,551,102,500/87,320.25
6. Step 6: Final answer
   x = 407,134.69