Finding the Third Proportional to 281,149.88 and 612,216

Step by Step Solution

1. Step 1: Write the proportion equation
   281,149.88 : 612,216 = 612,216 : x
2. Step 2: Convert to fraction form
   281,149.88/612,216 = 612,216/x
3. Step 3: Cross multiply
   281,149.88x = 612,216 × 612,216
4. Step 4: Simplify right side
   281,149.88x = 374,808,430,656
5. Step 5: Solve for x
   x = 374,808,430,656/281,149.88
6. Step 6: Final answer
   x = 1,333,126.79