Finding the Third Proportional to 250,656.50 and 521,969.50

Step by Step Solution

1. Step 1: Write the proportion equation
   250,656.50 : 521,969.50 = 521,969.50 : x
2. Step 2: Convert to fraction form
   250,656.50/521,969.50 = 521,969.50/x
3. Step 3: Cross multiply
   250,656.50x = 521,969.50 × 521,969.50
4. Step 4: Simplify right side
   250,656.50x = 272,452,158,930.25
5. Step 5: Solve for x
   x = 272,452,158,930.25/250,656.50
6. Step 6: Final answer
   x = 1,086,954.29