Finding the Third Proportional to 112,772 and 247,870

Step by Step Solution

1. Step 1: Write the proportion equation
   112,772 : 247,870 = 247,870 : x
2. Step 2: Convert to fraction form
   112,772/247,870 = 247,870/x
3. Step 3: Cross multiply
   112,772x = 247,870 × 247,870
4. Step 4: Simplify right side
   112,772x = 61,439,536,900
5. Step 5: Solve for x
   x = 61,439,536,900/112,772
6. Step 6: Final answer
   x = 544,811.98