Finding the Third Proportional to 1,691,804 and 2,591,280

Step by Step Solution

1. Step 1: Write the proportion equation
   1,691,804 : 2,591,280 = 2,591,280 : x
2. Step 2: Convert to fraction form
   1,691,804/2,591,280 = 2,591,280/x
3. Step 3: Cross multiply
   1,691,804x = 2,591,280 × 2,591,280
4. Step 4: Simplify right side
   1,691,804x = 6,714,732,038,400
5. Step 5: Solve for x
   x = 6,714,732,038,400/1,691,804
6. Step 6: Final answer
   x = 3,968,977.52