Finding the Third Proportional to 56,508 and 69,144

Step by Step Solution

1. Step 1: Write the proportion equation
   56,508 : 69,144 = 69,144 : x
2. Step 2: Convert to fraction form
   56,508/69,144 = 69,144/x
3. Step 3: Cross multiply
   56,508x = 69,144 × 69,144
4. Step 4: Simplify right side
   56,508x = 4,780,892,736
5. Step 5: Solve for x
   x = 4,780,892,736/56,508
6. Step 6: Final answer
   x = 84,605.59