Finding the Third Proportional to 538,138 and 1,141,872.50

Step by Step Solution

1. Step 1: Write the proportion equation
   538,138 : 1,141,872.50 = 1,141,872.50 : x
2. Step 2: Convert to fraction form
   538,138/1,141,872.50 = 1,141,872.50/x
3. Step 3: Cross multiply
   538,138x = 1,141,872.50 × 1,141,872.50
4. Step 4: Simplify right side
   538,138x = 1,303,872,806,256.25
5. Step 5: Solve for x
   x = 1,303,872,806,256.25/538,138
6. Step 6: Final answer
   x = 2,422,933.91