Finding the Third Proportional to 1,018,719 and 2,121,090

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,719 : 2,121,090 = 2,121,090 : x
2. Step 2: Convert to fraction form
   1,018,719/2,121,090 = 2,121,090/x
3. Step 3: Cross multiply
   1,018,719x = 2,121,090 × 2,121,090
4. Step 4: Simplify right side
   1,018,719x = 4,499,022,788,100
5. Step 5: Solve for x
   x = 4,499,022,788,100/1,018,719
6. Step 6: Final answer
   x = 4,416,353.07