Finding the Third Proportional to 1,663,440 and 2,506,987

Step by Step Solution

1. Step 1: Write the proportion equation
   1,663,440 : 2,506,987 = 2,506,987 : x
2. Step 2: Convert to fraction form
   1,663,440/2,506,987 = 2,506,987/x
3. Step 3: Cross multiply
   1,663,440x = 2,506,987 × 2,506,987
4. Step 4: Simplify right side
   1,663,440x = 6,284,983,818,169
5. Step 5: Solve for x
   x = 6,284,983,818,169/1,663,440
6. Step 6: Final answer
   x = 3,778,305.09