Finding the Third Proportional to 1,423,248 and 3,126,408

Step by Step Solution

1. Step 1: Write the proportion equation
   1,423,248 : 3,126,408 = 3,126,408 : x
2. Step 2: Convert to fraction form
   1,423,248/3,126,408 = 3,126,408/x
3. Step 3: Cross multiply
   1,423,248x = 3,126,408 × 3,126,408
4. Step 4: Simplify right side
   1,423,248x = 9,774,426,982,464
5. Step 5: Solve for x
   x = 9,774,426,982,464/1,423,248
6. Step 6: Final answer
   x = 6,867,690.65