Finding the Third Proportional to 76,436 and 112,407

Step by Step Solution

1. Step 1: Write the proportion equation
   76,436 : 112,407 = 112,407 : x
2. Step 2: Convert to fraction form
   76,436/112,407 = 112,407/x
3. Step 3: Cross multiply
   76,436x = 112,407 × 112,407
4. Step 4: Simplify right side
   76,436x = 12,635,333,649
5. Step 5: Solve for x
   x = 12,635,333,649/76,436
6. Step 6: Final answer
   x = 165,306.06