Finding the Third Proportional to 42,230 and 91,156

Step by Step Solution

1. Step 1: Write the proportion equation
   42,230 : 91,156 = 91,156 : x
2. Step 2: Convert to fraction form
   42,230/91,156 = 91,156/x
3. Step 3: Cross multiply
   42,230x = 91,156 × 91,156
4. Step 4: Simplify right side
   42,230x = 8,309,416,336
5. Step 5: Solve for x
   x = 8,309,416,336/42,230
6. Step 6: Final answer
   x = 196,765.72