Finding the Third Proportional to 56,024 and 86,790

Step by Step Solution

1. Step 1: Write the proportion equation
   56,024 : 86,790 = 86,790 : x
2. Step 2: Convert to fraction form
   56,024/86,790 = 86,790/x
3. Step 3: Cross multiply
   56,024x = 86,790 × 86,790
4. Step 4: Simplify right side
   56,024x = 7,532,504,100
5. Step 5: Solve for x
   x = 7,532,504,100/56,024
6. Step 6: Final answer
   x = 134,451.38