Finding the Third Proportional to 359,870 and 774,226

Step by Step Solution

1. Step 1: Write the proportion equation
   359,870 : 774,226 = 774,226 : x
2. Step 2: Convert to fraction form
   359,870/774,226 = 774,226/x
3. Step 3: Cross multiply
   359,870x = 774,226 × 774,226
4. Step 4: Simplify right side
   359,870x = 599,425,899,076
5. Step 5: Solve for x
   x = 599,425,899,076/359,870
6. Step 6: Final answer
   x = 1,665,673.44