Finding the Third Proportional to 21,678,972.50 and 31,919,570

Step by Step Solution

1. Step 1: Write the proportion equation
   21,678,972.50 : 31,919,570 = 31,919,570 : x
2. Step 2: Convert to fraction form
   21,678,972.50/31,919,570 = 31,919,570/x
3. Step 3: Cross multiply
   21,678,972.50x = 31,919,570 × 31,919,570
4. Step 4: Simplify right side
   21,678,972.50x = 1,018,858,948,984,900
5. Step 5: Solve for x
   x = 1,018,858,948,984,900/21,678,972.50
6. Step 6: Final answer
   x = 46,997,566.37