Finding the Third Proportional to 1,605,280 and 2,140,008

Step by Step Solution

1. Step 1: Write the proportion equation
   1,605,280 : 2,140,008 = 2,140,008 : x
2. Step 2: Convert to fraction form
   1,605,280/2,140,008 = 2,140,008/x
3. Step 3: Cross multiply
   1,605,280x = 2,140,008 × 2,140,008
4. Step 4: Simplify right side
   1,605,280x = 4,579,634,240,064
5. Step 5: Solve for x
   x = 4,579,634,240,064/1,605,280
6. Step 6: Final answer
   x = 2,852,856.97