Finding the Third Proportional to 598,478 and 1,279,898

Step by Step Solution

1. Step 1: Write the proportion equation
   598,478 : 1,279,898 = 1,279,898 : x
2. Step 2: Convert to fraction form
   598,478/1,279,898 = 1,279,898/x
3. Step 3: Cross multiply
   598,478x = 1,279,898 × 1,279,898
4. Step 4: Simplify right side
   598,478x = 1,638,138,890,404
5. Step 5: Solve for x
   x = 1,638,138,890,404/598,478
6. Step 6: Final answer
   x = 2,737,174.78