Finding the Third Proportional to 598,440 and 1,309,488

Step by Step Solution

1. Step 1: Write the proportion equation
   598,440 : 1,309,488 = 1,309,488 : x
2. Step 2: Convert to fraction form
   598,440/1,309,488 = 1,309,488/x
3. Step 3: Cross multiply
   598,440x = 1,309,488 × 1,309,488
4. Step 4: Simplify right side
   598,440x = 1,714,758,822,144
5. Step 5: Solve for x
   x = 1,714,758,822,144/598,440
6. Step 6: Final answer
   x = 2,865,381.36