Finding the Third Proportional to 560,309 and 838,483.50

Step by Step Solution

1. Step 1: Write the proportion equation
   560,309 : 838,483.50 = 838,483.50 : x
2. Step 2: Convert to fraction form
   560,309/838,483.50 = 838,483.50/x
3. Step 3: Cross multiply
   560,309x = 838,483.50 × 838,483.50
4. Step 4: Simplify right side
   560,309x = 703,054,579,772.25
5. Step 5: Solve for x
   x = 703,054,579,772.25/560,309
6. Step 6: Final answer
   x = 1,254,762.25