Finding the Third Proportional to 40,076 and 87,118

Step by Step Solution

1. Step 1: Write the proportion equation
   40,076 : 87,118 = 87,118 : x
2. Step 2: Convert to fraction form
   40,076/87,118 = 87,118/x
3. Step 3: Cross multiply
   40,076x = 87,118 × 87,118
4. Step 4: Simplify right side
   40,076x = 7,589,545,924
5. Step 5: Solve for x
   x = 7,589,545,924/40,076
6. Step 6: Final answer
   x = 189,378.83