Finding the Third Proportional to 17,656 and 42,160

Step by Step Solution

1. Step 1: Write the proportion equation
   17,656 : 42,160 = 42,160 : x
2. Step 2: Convert to fraction form
   17,656/42,160 = 42,160/x
3. Step 3: Cross multiply
   17,656x = 42,160 × 42,160
4. Step 4: Simplify right side
   17,656x = 1,777,465,600
5. Step 5: Solve for x
   x = 1,777,465,600/17,656
6. Step 6: Final answer
   x = 100,672.04