Finding the Third Proportional to 1,373,139 and 1,997,379

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373,139 : 1,997,379 = 1,997,379 : x
2. Step 2: Convert to fraction form
   1,373,139/1,997,379 = 1,997,379/x
3. Step 3: Cross multiply
   1,373,139x = 1,997,379 × 1,997,379
4. Step 4: Simplify right side
   1,373,139x = 3,989,522,869,641
5. Step 5: Solve for x
   x = 3,989,522,869,641/1,373,139
6. Step 6: Final answer
   x = 2,905,403.51