Finding the Third Proportional to 476,875 and 668,338.50

Step by Step Solution

1. Step 1: Write the proportion equation
   476,875 : 668,338.50 = 668,338.50 : x
2. Step 2: Convert to fraction form
   476,875/668,338.50 = 668,338.50/x
3. Step 3: Cross multiply
   476,875x = 668,338.50 × 668,338.50
4. Step 4: Simplify right side
   476,875x = 446,676,350,582.25
5. Step 5: Solve for x
   x = 446,676,350,582.25/476,875
6. Step 6: Final answer
   x = 936,673.87