Finding the Third Proportional to 1,005,808 and 2,169,080

Step by Step Solution

1. Step 1: Write the proportion equation
   1,005,808 : 2,169,080 = 2,169,080 : x
2. Step 2: Convert to fraction form
   1,005,808/2,169,080 = 2,169,080/x
3. Step 3: Cross multiply
   1,005,808x = 2,169,080 × 2,169,080
4. Step 4: Simplify right side
   1,005,808x = 4,704,908,046,400
5. Step 5: Solve for x
   x = 4,704,908,046,400/1,005,808
6. Step 6: Final answer
   x = 4,677,739.73