Finding the Third Proportional to 55,656 and 70,520

Step by Step Solution

1. Step 1: Write the proportion equation
   55,656 : 70,520 = 70,520 : x
2. Step 2: Convert to fraction form
   55,656/70,520 = 70,520/x
3. Step 3: Cross multiply
   55,656x = 70,520 × 70,520
4. Step 4: Simplify right side
   55,656x = 4,973,070,400
5. Step 5: Solve for x
   x = 4,973,070,400/55,656
6. Step 6: Final answer
   x = 89,353.72