Finding the Third Proportional to 79,385 and 112,840

Step by Step Solution

1. Step 1: Write the proportion equation
   79,385 : 112,840 = 112,840 : x
2. Step 2: Convert to fraction form
   79,385/112,840 = 112,840/x
3. Step 3: Cross multiply
   79,385x = 112,840 × 112,840
4. Step 4: Simplify right side
   79,385x = 12,732,865,600
5. Step 5: Solve for x
   x = 12,732,865,600/79,385
6. Step 6: Final answer
   x = 160,393.85