Finding the Third Proportional to 56,940 and 86,788

Step by Step Solution

1. Step 1: Write the proportion equation
   56,940 : 86,788 = 86,788 : x
2. Step 2: Convert to fraction form
   56,940/86,788 = 86,788/x
3. Step 3: Cross multiply
   56,940x = 86,788 × 86,788
4. Step 4: Simplify right side
   56,940x = 7,532,156,944
5. Step 5: Solve for x
   x = 7,532,156,944/56,940
6. Step 6: Final answer
   x = 132,282.35