Finding the Third Proportional to 63,620 and 83,686

Step by Step Solution

1. Step 1: Write the proportion equation
   63,620 : 83,686 = 83,686 : x
2. Step 2: Convert to fraction form
   63,620/83,686 = 83,686/x
3. Step 3: Cross multiply
   63,620x = 83,686 × 83,686
4. Step 4: Simplify right side
   63,620x = 7,003,346,596
5. Step 5: Solve for x
   x = 7,003,346,596/63,620
6. Step 6: Final answer
   x = 110,080.90