Finding the Third Proportional to 42,898.50 and 90,976.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,898.50 : 90,976.50 = 90,976.50 : x
2. Step 2: Convert to fraction form
   42,898.50/90,976.50 = 90,976.50/x
3. Step 3: Cross multiply
   42,898.50x = 90,976.50 × 90,976.50
4. Step 4: Simplify right side
   42,898.50x = 8,276,723,552.25
5. Step 5: Solve for x
   x = 8,276,723,552.25/42,898.50
6. Step 6: Final answer
   x = 192,937.36