Finding the Third Proportional to 281,106.56 and 614,638.69

Step by Step Solution

1. Step 1: Write the proportion equation
   281,106.56 : 614,638.69 = 614,638.69 : x
2. Step 2: Convert to fraction form
   281,106.56/614,638.69 = 614,638.69/x
3. Step 3: Cross multiply
   281,106.56x = 614,638.69 × 614,638.69
4. Step 4: Simplify right side
   281,106.56x = 377,780,716,171.72
5. Step 5: Solve for x
   x = 377,780,716,171.72/281,106.56
6. Step 6: Final answer
   x = 1,343,905.72