Finding the Third Proportional to 275,718.50 and 607,308

Step by Step Solution

1. Step 1: Write the proportion equation
   275,718.50 : 607,308 = 607,308 : x
2. Step 2: Convert to fraction form
   275,718.50/607,308 = 607,308/x
3. Step 3: Cross multiply
   275,718.50x = 607,308 × 607,308
4. Step 4: Simplify right side
   275,718.50x = 368,823,006,864
5. Step 5: Solve for x
   x = 368,823,006,864/275,718.50
6. Step 6: Final answer
   x = 1,337,679.58