Finding the Third Proportional to 245,859 and 536,398.50

Step by Step Solution

1. Step 1: Write the proportion equation
   245,859 : 536,398.50 = 536,398.50 : x
2. Step 2: Convert to fraction form
   245,859/536,398.50 = 536,398.50/x
3. Step 3: Cross multiply
   245,859x = 536,398.50 × 536,398.50
4. Step 4: Simplify right side
   245,859x = 287,723,350,802.25
5. Step 5: Solve for x
   x = 287,723,350,802.25/245,859
6. Step 6: Final answer
   x = 1,170,277.89