Finding the Third Proportional to 5,148,408 and 7,789,042.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,148,408 : 7,789,042.50 = 7,789,042.50 : x
2. Step 2: Convert to fraction form
   5,148,408/7,789,042.50 = 7,789,042.50/x
3. Step 3: Cross multiply
   5,148,408x = 7,789,042.50 × 7,789,042.50
4. Step 4: Simplify right side
   5,148,408x = 60,669,183,066,806.25
5. Step 5: Solve for x
   x = 60,669,183,066,806.25/5,148,408
6. Step 6: Final answer
   x = 11,784,066.66