Finding the Third Proportional to 1,667,472 and 3,518,688

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667,472 : 3,518,688 = 3,518,688 : x
2. Step 2: Convert to fraction form
   1,667,472/3,518,688 = 3,518,688/x
3. Step 3: Cross multiply
   1,667,472x = 3,518,688 × 3,518,688
4. Step 4: Simplify right side
   1,667,472x = 12,381,165,241,344
5. Step 5: Solve for x
   x = 12,381,165,241,344/1,667,472
6. Step 6: Final answer
   x = 7,425,111.33