Finding the Third Proportional to 590,784 and 1,288,500

Step by Step Solution

1. Step 1: Write the proportion equation
   590,784 : 1,288,500 = 1,288,500 : x
2. Step 2: Convert to fraction form
   590,784/1,288,500 = 1,288,500/x
3. Step 3: Cross multiply
   590,784x = 1,288,500 × 1,288,500
4. Step 4: Simplify right side
   590,784x = 1,660,232,250,000
5. Step 5: Solve for x
   x = 1,660,232,250,000/590,784
6. Step 6: Final answer
   x = 2,810,218.71