Finding the Third Proportional to 590,196 and 1,280,472

Step by Step Solution

1. Step 1: Write the proportion equation
   590,196 : 1,280,472 = 1,280,472 : x
2. Step 2: Convert to fraction form
   590,196/1,280,472 = 1,280,472/x
3. Step 3: Cross multiply
   590,196x = 1,280,472 × 1,280,472
4. Step 4: Simplify right side
   590,196x = 1,639,608,542,784
5. Step 5: Solve for x
   x = 1,639,608,542,784/590,196
6. Step 6: Final answer
   x = 2,778,074.64