Finding the Third Proportional to 16,656 and 35,978

Step by Step Solution

1. Step 1: Write the proportion equation
   16,656 : 35,978 = 35,978 : x
2. Step 2: Convert to fraction form
   16,656/35,978 = 35,978/x
3. Step 3: Cross multiply
   16,656x = 35,978 × 35,978
4. Step 4: Simplify right side
   16,656x = 1,294,416,484
5. Step 5: Solve for x
   x = 1,294,416,484/16,656
6. Step 6: Final answer
   x = 77,714.73