Finding the Third Proportional to 679,080 and 1,439,108

Step by Step Solution

1. Step 1: Write the proportion equation
   679,080 : 1,439,108 = 1,439,108 : x
2. Step 2: Convert to fraction form
   679,080/1,439,108 = 1,439,108/x
3. Step 3: Cross multiply
   679,080x = 1,439,108 × 1,439,108
4. Step 4: Simplify right side
   679,080x = 2,071,031,835,664
5. Step 5: Solve for x
   x = 2,071,031,835,664/679,080
6. Step 6: Final answer
   x = 3,049,761.20