Finding the Third Proportional to 55,630 and 83,917

Step by Step Solution

1. Step 1: Write the proportion equation
   55,630 : 83,917 = 83,917 : x
2. Step 2: Convert to fraction form
   55,630/83,917 = 83,917/x
3. Step 3: Cross multiply
   55,630x = 83,917 × 83,917
4. Step 4: Simplify right side
   55,630x = 7,042,062,889
5. Step 5: Solve for x
   x = 7,042,062,889/55,630
6. Step 6: Final answer
   x = 126,587.50