Finding the Third Proportional to 56,300 and 87,282

Step by Step Solution

1. Step 1: Write the proportion equation
   56,300 : 87,282 = 87,282 : x
2. Step 2: Convert to fraction form
   56,300/87,282 = 87,282/x
3. Step 3: Cross multiply
   56,300x = 87,282 × 87,282
4. Step 4: Simplify right side
   56,300x = 7,618,147,524
5. Step 5: Solve for x
   x = 7,618,147,524/56,300
6. Step 6: Final answer
   x = 135,313.46