Finding the Third Proportional to 245,358.50 and 528,300.50

Step by Step Solution

1. Step 1: Write the proportion equation
   245,358.50 : 528,300.50 = 528,300.50 : x
2. Step 2: Convert to fraction form
   245,358.50/528,300.50 = 528,300.50/x
3. Step 3: Cross multiply
   245,358.50x = 528,300.50 × 528,300.50
4. Step 4: Simplify right side
   245,358.50x = 279,101,418,300.25
5. Step 5: Solve for x
   x = 279,101,418,300.25/245,358.50
6. Step 6: Final answer
   x = 1,137,524.96