Finding the Third Proportional to 5,072,345 and 10,321,833.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,072,345 : 10,321,833.50 = 10,321,833.50 : x
2. Step 2: Convert to fraction form
   5,072,345/10,321,833.50 = 10,321,833.50/x
3. Step 3: Cross multiply
   5,072,345x = 10,321,833.50 × 10,321,833.50
4. Step 4: Simplify right side
   5,072,345x = 106,540,246,801,722.25
5. Step 5: Solve for x
   x = 106,540,246,801,722.25/5,072,345
6. Step 6: Final answer
   x = 21,004,140.45