Finding the Third Proportional to 578,708 and 1,269,472

Step by Step Solution

1. Step 1: Write the proportion equation
   578,708 : 1,269,472 = 1,269,472 : x
2. Step 2: Convert to fraction form
   578,708/1,269,472 = 1,269,472/x
3. Step 3: Cross multiply
   578,708x = 1,269,472 × 1,269,472
4. Step 4: Simplify right side
   578,708x = 1,611,559,158,784
5. Step 5: Solve for x
   x = 1,611,559,158,784/578,708
6. Step 6: Final answer
   x = 2,784,753.55