Finding the Third Proportional to 308,650 and 674,972

Step by Step Solution

1. Step 1: Write the proportion equation
   308,650 : 674,972 = 674,972 : x
2. Step 2: Convert to fraction form
   308,650/674,972 = 674,972/x
3. Step 3: Cross multiply
   308,650x = 674,972 × 674,972
4. Step 4: Simplify right side
   308,650x = 455,587,200,784
5. Step 5: Solve for x
   x = 455,587,200,784/308,650
6. Step 6: Final answer
   x = 1,476,064.15