Finding the Third Proportional to 607,282.50 and 907,578

Step by Step Solution

1. Step 1: Write the proportion equation
   607,282.50 : 907,578 = 907,578 : x
2. Step 2: Convert to fraction form
   607,282.50/907,578 = 907,578/x
3. Step 3: Cross multiply
   607,282.50x = 907,578 × 907,578
4. Step 4: Simplify right side
   607,282.50x = 823,697,826,084
5. Step 5: Solve for x
   x = 823,697,826,084/607,282.50
6. Step 6: Final answer
   x = 1,356,366.81