Finding the Third Proportional to 90,373.50 and 188,158.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,373.50 : 188,158.50 = 188,158.50 : x
2. Step 2: Convert to fraction form
   90,373.50/188,158.50 = 188,158.50/x
3. Step 3: Cross multiply
   90,373.50x = 188,158.50 × 188,158.50
4. Step 4: Simplify right side
   90,373.50x = 35,403,621,122.25
5. Step 5: Solve for x
   x = 35,403,621,122.25/90,373.50
6. Step 6: Final answer
   x = 391,747.81