Finding the Third Proportional to 10,111,281.75 and 21,639,739.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,111,281.75 : 21,639,739.50 = 21,639,739.50 : x
2. Step 2: Convert to fraction form
   10,111,281.75/21,639,739.50 = 21,639,739.50/x
3. Step 3: Cross multiply
   10,111,281.75x = 21,639,739.50 × 21,639,739.50
4. Step 4: Simplify right side
   10,111,281.75x = 468,278,325,627,860.25
5. Step 5: Solve for x
   x = 468,278,325,627,860.25/10,111,281.75
6. Step 6: Final answer
   x = 46,312,459.41