Finding the Third Proportional to 8,442,820.50 and 19,910,515.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,442,820.50 : 19,910,515.50 = 19,910,515.50 : x
2. Step 2: Convert to fraction form
   8,442,820.50/19,910,515.50 = 19,910,515.50/x
3. Step 3: Cross multiply
   8,442,820.50x = 19,910,515.50 × 19,910,515.50
4. Step 4: Simplify right side
   8,442,820.50x = 396,428,627,475,740.25
5. Step 5: Solve for x
   x = 396,428,627,475,740.25/8,442,820.50
6. Step 6: Final answer
   x = 46,954,525.15