Finding the Third Proportional to 578,223.50 and 1,271,777.50

Step by Step Solution

1. Step 1: Write the proportion equation
   578,223.50 : 1,271,777.50 = 1,271,777.50 : x
2. Step 2: Convert to fraction form
   578,223.50/1,271,777.50 = 1,271,777.50/x
3. Step 3: Cross multiply
   578,223.50x = 1,271,777.50 × 1,271,777.50
4. Step 4: Simplify right side
   578,223.50x = 1,617,418,009,506.25
5. Step 5: Solve for x
   x = 1,617,418,009,506.25/578,223.50
6. Step 6: Final answer
   x = 2,797,219.43