Finding the Third Proportional to 90,857.50 and 195,602

Step by Step Solution

1. Step 1: Write the proportion equation
   90,857.50 : 195,602 = 195,602 : x
2. Step 2: Convert to fraction form
   90,857.50/195,602 = 195,602/x
3. Step 3: Cross multiply
   90,857.50x = 195,602 × 195,602
4. Step 4: Simplify right side
   90,857.50x = 38,260,142,404
5. Step 5: Solve for x
   x = 38,260,142,404/90,857.50
6. Step 6: Final answer
   x = 421,100.54