Finding the Third Proportional to 4,786,380 and 7,182,904

Step by Step Solution

1. Step 1: Write the proportion equation
   4,786,380 : 7,182,904 = 7,182,904 : x
2. Step 2: Convert to fraction form
   4,786,380/7,182,904 = 7,182,904/x
3. Step 3: Cross multiply
   4,786,380x = 7,182,904 × 7,182,904
4. Step 4: Simplify right side
   4,786,380x = 51,594,109,873,216
5. Step 5: Solve for x
   x = 51,594,109,873,216/4,786,380
6. Step 6: Final answer
   x = 10,779,359.32