Finding the Third Proportional to 308,500 and 676,088

Step by Step Solution

1. Step 1: Write the proportion equation
   308,500 : 676,088 = 676,088 : x
2. Step 2: Convert to fraction form
   308,500/676,088 = 676,088/x
3. Step 3: Cross multiply
   308,500x = 676,088 × 676,088
4. Step 4: Simplify right side
   308,500x = 457,094,983,744
5. Step 5: Solve for x
   x = 457,094,983,744/308,500
6. Step 6: Final answer
   x = 1,481,669.32