Finding the Third Proportional to 578,688.75 and 1,267,710

Step by Step Solution

1. Step 1: Write the proportion equation
   578,688.75 : 1,267,710 = 1,267,710 : x
2. Step 2: Convert to fraction form
   578,688.75/1,267,710 = 1,267,710/x
3. Step 3: Cross multiply
   578,688.75x = 1,267,710 × 1,267,710
4. Step 4: Simplify right side
   578,688.75x = 1,607,088,644,100
5. Step 5: Solve for x
   x = 1,607,088,644,100/578,688.75
6. Step 6: Final answer
   x = 2,777,120.94