Finding the Third Proportional to 90,373.50 and 196,843.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,373.50 : 196,843.50 = 196,843.50 : x
2. Step 2: Convert to fraction form
   90,373.50/196,843.50 = 196,843.50/x
3. Step 3: Cross multiply
   90,373.50x = 196,843.50 × 196,843.50
4. Step 4: Simplify right side
   90,373.50x = 38,747,363,492.25
5. Step 5: Solve for x
   x = 38,747,363,492.25/90,373.50
6. Step 6: Final answer
   x = 428,746.96