Finding the Third Proportional to 2,155,747.50 and 4,694,221.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155,747.50 : 4,694,221.50 = 4,694,221.50 : x
2. Step 2: Convert to fraction form
   2,155,747.50/4,694,221.50 = 4,694,221.50/x
3. Step 3: Cross multiply
   2,155,747.50x = 4,694,221.50 × 4,694,221.50
4. Step 4: Simplify right side
   2,155,747.50x = 22,035,715,491,062.25
5. Step 5: Solve for x
   x = 22,035,715,491,062.25/2,155,747.50
6. Step 6: Final answer
   x = 10,221,844.39