Finding the Third Proportional to 308,875 and 676,798

Step by Step Solution

1. Step 1: Write the proportion equation
   308,875 : 676,798 = 676,798 : x
2. Step 2: Convert to fraction form
   308,875/676,798 = 676,798/x
3. Step 3: Cross multiply
   308,875x = 676,798 × 676,798
4. Step 4: Simplify right side
   308,875x = 458,055,532,804
5. Step 5: Solve for x
   x = 458,055,532,804/308,875
6. Step 6: Final answer
   x = 1,482,980.28