Finding the Third Proportional to 187,610 and 281,091

Step by Step Solution

1. Step 1: Write the proportion equation
   187,610 : 281,091 = 281,091 : x
2. Step 2: Convert to fraction form
   187,610/281,091 = 281,091/x
3. Step 3: Cross multiply
   187,610x = 281,091 × 281,091
4. Step 4: Simplify right side
   187,610x = 79,012,150,281
5. Step 5: Solve for x
   x = 79,012,150,281/187,610
6. Step 6: Final answer
   x = 421,151.06