Finding the Third Proportional to 42,157 and 90,323.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,157 : 90,323.50 = 90,323.50 : x
2. Step 2: Convert to fraction form
   42,157/90,323.50 = 90,323.50/x
3. Step 3: Cross multiply
   42,157x = 90,323.50 × 90,323.50
4. Step 4: Simplify right side
   42,157x = 8,158,334,652.25
5. Step 5: Solve for x
   x = 8,158,334,652.25/42,157
6. Step 6: Final answer
   x = 193,522.66