Finding the Third Proportional to 250,431 and 556,846.50

Step by Step Solution

1. Step 1: Write the proportion equation
   250,431 : 556,846.50 = 556,846.50 : x
2. Step 2: Convert to fraction form
   250,431/556,846.50 = 556,846.50/x
3. Step 3: Cross multiply
   250,431x = 556,846.50 × 556,846.50
4. Step 4: Simplify right side
   250,431x = 310,078,024,562.25
5. Step 5: Solve for x
   x = 310,078,024,562.25/250,431
6. Step 6: Final answer
   x = 1,238,177.48