Finding the Third Proportional to 63,012 and 137,472

Step by Step Solution

1. Step 1: Write the proportion equation
   63,012 : 137,472 = 137,472 : x
2. Step 2: Convert to fraction form
   63,012/137,472 = 137,472/x
3. Step 3: Cross multiply
   63,012x = 137,472 × 137,472
4. Step 4: Simplify right side
   63,012x = 18,898,550,784
5. Step 5: Solve for x
   x = 18,898,550,784/63,012
6. Step 6: Final answer
   x = 299,919.87