Finding the Third Proportional to 578,142 and 1,271,614.50

Step by Step Solution

1. Step 1: Write the proportion equation
   578,142 : 1,271,614.50 = 1,271,614.50 : x
2. Step 2: Convert to fraction form
   578,142/1,271,614.50 = 1,271,614.50/x
3. Step 3: Cross multiply
   578,142x = 1,271,614.50 × 1,271,614.50
4. Step 4: Simplify right side
   578,142x = 1,617,003,436,610.25
5. Step 5: Solve for x
   x = 1,617,003,436,610.25/578,142
6. Step 6: Final answer
   x = 2,796,896.67