Finding the Third Proportional to 55,434 and 87,023

Step by Step Solution

1. Step 1: Write the proportion equation
   55,434 : 87,023 = 87,023 : x
2. Step 2: Convert to fraction form
   55,434/87,023 = 87,023/x
3. Step 3: Cross multiply
   55,434x = 87,023 × 87,023
4. Step 4: Simplify right side
   55,434x = 7,573,002,529
5. Step 5: Solve for x
   x = 7,573,002,529/55,434
6. Step 6: Final answer
   x = 136,612.95