Finding the Third Proportional to 55,590 and 83,868

Step by Step Solution

1. Step 1: Write the proportion equation
   55,590 : 83,868 = 83,868 : x
2. Step 2: Convert to fraction form
   55,590/83,868 = 83,868/x
3. Step 3: Cross multiply
   55,590x = 83,868 × 83,868
4. Step 4: Simplify right side
   55,590x = 7,033,841,424
5. Step 5: Solve for x
   x = 7,033,841,424/55,590
6. Step 6: Final answer
   x = 126,530.70