Finding the Third Proportional to 21,678,478.50 and 31,159,582.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,678,478.50 : 31,159,582.50 = 31,159,582.50 : x
2. Step 2: Convert to fraction form
   21,678,478.50/31,159,582.50 = 31,159,582.50/x
3. Step 3: Cross multiply
   21,678,478.50x = 31,159,582.50 × 31,159,582.50
4. Step 4: Simplify right side
   21,678,478.50x = 970,919,581,574,306.25
5. Step 5: Solve for x
   x = 970,919,581,574,306.25/21,678,478.50
6. Step 6: Final answer
   x = 44,787,256.71