Finding the Third Proportional to 42,343 and 91,435

Step by Step Solution

1. Step 1: Write the proportion equation
   42,343 : 91,435 = 91,435 : x
2. Step 2: Convert to fraction form
   42,343/91,435 = 91,435/x
3. Step 3: Cross multiply
   42,343x = 91,435 × 91,435
4. Step 4: Simplify right side
   42,343x = 8,360,359,225
5. Step 5: Solve for x
   x = 8,360,359,225/42,343
6. Step 6: Final answer
   x = 197,443.72