Finding the Third Proportional to 11,945,472 and 18,885,516

Step by Step Solution

1. Step 1: Write the proportion equation
   11,945,472 : 18,885,516 = 18,885,516 : x
2. Step 2: Convert to fraction form
   11,945,472/18,885,516 = 18,885,516/x
3. Step 3: Cross multiply
   11,945,472x = 18,885,516 × 18,885,516
4. Step 4: Simplify right side
   11,945,472x = 356,662,714,586,256
5. Step 5: Solve for x
   x = 356,662,714,586,256/11,945,472
6. Step 6: Final answer
   x = 29,857,565.66