Finding the Third Proportional to 2,172,640 and 3,192,432

Step by Step Solution

1. Step 1: Write the proportion equation
   2,172,640 : 3,192,432 = 3,192,432 : x
2. Step 2: Convert to fraction form
   2,172,640/3,192,432 = 3,192,432/x
3. Step 3: Cross multiply
   2,172,640x = 3,192,432 × 3,192,432
4. Step 4: Simplify right side
   2,172,640x = 10,191,622,074,624
5. Step 5: Solve for x
   x = 10,191,622,074,624/2,172,640
6. Step 6: Final answer
   x = 4,690,893.14