Finding the Third Proportional to 55,484 and 90,590

Step by Step Solution

1. Step 1: Write the proportion equation
   55,484 : 90,590 = 90,590 : x
2. Step 2: Convert to fraction form
   55,484/90,590 = 90,590/x
3. Step 3: Cross multiply
   55,484x = 90,590 × 90,590
4. Step 4: Simplify right side
   55,484x = 8,206,548,100
5. Step 5: Solve for x
   x = 8,206,548,100/55,484
6. Step 6: Final answer
   x = 147,908.37