Finding the Third Proportional to 679,071 and 1,439,090

Step by Step Solution

1. Step 1: Write the proportion equation
   679,071 : 1,439,090 = 1,439,090 : x
2. Step 2: Convert to fraction form
   679,071/1,439,090 = 1,439,090/x
3. Step 3: Cross multiply
   679,071x = 1,439,090 × 1,439,090
4. Step 4: Simplify right side
   679,071x = 2,070,980,028,100
5. Step 5: Solve for x
   x = 2,070,980,028,100/679,071
6. Step 6: Final answer
   x = 3,049,725.33