Finding the Third Proportional to 49,390 and 109,459

Step by Step Solution

1. Step 1: Write the proportion equation
   49,390 : 109,459 = 109,459 : x
2. Step 2: Convert to fraction form
   49,390/109,459 = 109,459/x
3. Step 3: Cross multiply
   49,390x = 109,459 × 109,459
4. Step 4: Simplify right side
   49,390x = 11,981,272,681
5. Step 5: Solve for x
   x = 11,981,272,681/49,390
6. Step 6: Final answer
   x = 242,584.99