Finding the Third Proportional to 21,105,675 and 31,534,270

Step by Step Solution

1. Step 1: Write the proportion equation
   21,105,675 : 31,534,270 = 31,534,270 : x
2. Step 2: Convert to fraction form
   21,105,675/31,534,270 = 31,534,270/x
3. Step 3: Cross multiply
   21,105,675x = 31,534,270 × 31,534,270
4. Step 4: Simplify right side
   21,105,675x = 994,410,184,432,900
5. Step 5: Solve for x
   x = 994,410,184,432,900/21,105,675
6. Step 6: Final answer
   x = 47,115,772.63