Finding the Third Proportional to 116,694 and 281,340

Step by Step Solution

1. Step 1: Write the proportion equation
   116,694 : 281,340 = 281,340 : x
2. Step 2: Convert to fraction form
   116,694/281,340 = 281,340/x
3. Step 3: Cross multiply
   116,694x = 281,340 × 281,340
4. Step 4: Simplify right side
   116,694x = 79,152,195,600
5. Step 5: Solve for x
   x = 79,152,195,600/116,694
6. Step 6: Final answer
   x = 678,288.48