Finding the Third Proportional to 51,490 and 112,820

Step by Step Solution

1. Step 1: Write the proportion equation
   51,490 : 112,820 = 112,820 : x
2. Step 2: Convert to fraction form
   51,490/112,820 = 112,820/x
3. Step 3: Cross multiply
   51,490x = 112,820 × 112,820
4. Step 4: Simplify right side
   51,490x = 12,728,352,400
5. Step 5: Solve for x
   x = 12,728,352,400/51,490
6. Step 6: Final answer
   x = 247,200.47