Finding the Third Proportional to 86,052 and 187,980

Step by Step Solution

1. Step 1: Write the proportion equation
   86,052 : 187,980 = 187,980 : x
2. Step 2: Convert to fraction form
   86,052/187,980 = 187,980/x
3. Step 3: Cross multiply
   86,052x = 187,980 × 187,980
4. Step 4: Simplify right side
   86,052x = 35,336,480,400
5. Step 5: Solve for x
   x = 35,336,480,400/86,052
6. Step 6: Final answer
   x = 410,641.01