Finding the Third Proportional to 90,616 and 196,165.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,616 : 196,165.50 = 196,165.50 : x
2. Step 2: Convert to fraction form
   90,616/196,165.50 = 196,165.50/x
3. Step 3: Cross multiply
   90,616x = 196,165.50 × 196,165.50
4. Step 4: Simplify right side
   90,616x = 38,480,903,390.25
5. Step 5: Solve for x
   x = 38,480,903,390.25/90,616
6. Step 6: Final answer
   x = 424,659.04