Finding the Third Proportional to 598,754 and 1,290,820

Step by Step Solution

1. Step 1: Write the proportion equation
   598,754 : 1,290,820 = 1,290,820 : x
2. Step 2: Convert to fraction form
   598,754/1,290,820 = 1,290,820/x
3. Step 3: Cross multiply
   598,754x = 1,290,820 × 1,290,820
4. Step 4: Simplify right side
   598,754x = 1,666,216,272,400
5. Step 5: Solve for x
   x = 1,666,216,272,400/598,754
6. Step 6: Final answer
   x = 2,782,806.08