Finding the Third Proportional to 1,409,765 and 2,115,080

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409,765 : 2,115,080 = 2,115,080 : x
2. Step 2: Convert to fraction form
   1,409,765/2,115,080 = 2,115,080/x
3. Step 3: Cross multiply
   1,409,765x = 2,115,080 × 2,115,080
4. Step 4: Simplify right side
   1,409,765x = 4,473,563,406,400
5. Step 5: Solve for x
   x = 4,473,563,406,400/1,409,765
6. Step 6: Final answer
   x = 3,173,268.88