Finding the Third Proportional to 245,538 and 529,807.50

Step by Step Solution

1. Step 1: Write the proportion equation
   245,538 : 529,807.50 = 529,807.50 : x
2. Step 2: Convert to fraction form
   245,538/529,807.50 = 529,807.50/x
3. Step 3: Cross multiply
   245,538x = 529,807.50 × 529,807.50
4. Step 4: Simplify right side
   245,538x = 280,695,987,056.25
5. Step 5: Solve for x
   x = 280,695,987,056.25/245,538
6. Step 6: Final answer
   x = 1,143,187.56