Finding the Third Proportional to 111,148 and 243,374

Step by Step Solution

1. Step 1: Write the proportion equation
   111,148 : 243,374 = 243,374 : x
2. Step 2: Convert to fraction form
   111,148/243,374 = 243,374/x
3. Step 3: Cross multiply
   111,148x = 243,374 × 243,374
4. Step 4: Simplify right side
   111,148x = 59,230,903,876
5. Step 5: Solve for x
   x = 59,230,903,876/111,148
6. Step 6: Final answer
   x = 532,901.21