Finding the Third Proportional to 250,656 and 521,965.50

Step by Step Solution

1. Step 1: Write the proportion equation
   250,656 : 521,965.50 = 521,965.50 : x
2. Step 2: Convert to fraction form
   250,656/521,965.50 = 521,965.50/x
3. Step 3: Cross multiply
   250,656x = 521,965.50 × 521,965.50
4. Step 4: Simplify right side
   250,656x = 272,447,983,190.25
5. Step 5: Solve for x
   x = 272,447,983,190.25/250,656
6. Step 6: Final answer
   x = 1,086,939.80