Finding the Third Proportional to 279,700.59 and 612,296.72

Step by Step Solution

1. Step 1: Write the proportion equation
   279,700.59 : 612,296.72 = 612,296.72 : x
2. Step 2: Convert to fraction form
   279,700.59/612,296.72 = 612,296.72/x
3. Step 3: Cross multiply
   279,700.59x = 612,296.72 × 612,296.72
4. Step 4: Simplify right side
   279,700.59x = 374,907,271,792.02
5. Step 5: Solve for x
   x = 374,907,271,792.02/279,700.59
6. Step 6: Final answer
   x = 1,340,387.83