Finding the Third Proportional to 578,308.50 and 1,253,142

Step by Step Solution

1. Step 1: Write the proportion equation
   578,308.50 : 1,253,142 = 1,253,142 : x
2. Step 2: Convert to fraction form
   578,308.50/1,253,142 = 1,253,142/x
3. Step 3: Cross multiply
   578,308.50x = 1,253,142 × 1,253,142
4. Step 4: Simplify right side
   578,308.50x = 1,570,364,872,164
5. Step 5: Solve for x
   x = 1,570,364,872,164/578,308.50
6. Step 6: Final answer
   x = 2,715,444.91