Finding the Third Proportional to 278,049 and 607,066

Step by Step Solution

1. Step 1: Write the proportion equation
   278,049 : 607,066 = 607,066 : x
2. Step 2: Convert to fraction form
   278,049/607,066 = 607,066/x
3. Step 3: Cross multiply
   278,049x = 607,066 × 607,066
4. Step 4: Simplify right side
   278,049x = 368,529,128,356
5. Step 5: Solve for x
   x = 368,529,128,356/278,049
6. Step 6: Final answer
   x = 1,325,410.73