Finding the Third Proportional to 55,590 and 83,863

Step by Step Solution

1. Step 1: Write the proportion equation
   55,590 : 83,863 = 83,863 : x
2. Step 2: Convert to fraction form
   55,590/83,863 = 83,863/x
3. Step 3: Cross multiply
   55,590x = 83,863 × 83,863
4. Step 4: Simplify right side
   55,590x = 7,033,002,769
5. Step 5: Solve for x
   x = 7,033,002,769/55,590
6. Step 6: Final answer
   x = 126,515.61