Finding the Third Proportional to 21,678,775 and 31,919,350

Step by Step Solution

1. Step 1: Write the proportion equation
   21,678,775 : 31,919,350 = 31,919,350 : x
2. Step 2: Convert to fraction form
   21,678,775/31,919,350 = 31,919,350/x
3. Step 3: Cross multiply
   21,678,775x = 31,919,350 × 31,919,350
4. Step 4: Simplify right side
   21,678,775x = 1,018,844,904,422,500
5. Step 5: Solve for x
   x = 1,018,844,904,422,500/21,678,775
6. Step 6: Final answer
   x = 46,997,346.69