Finding the Third Proportional to 377,012 and 780,268

Step by Step Solution

1. Step 1: Write the proportion equation
   377,012 : 780,268 = 780,268 : x
2. Step 2: Convert to fraction form
   377,012/780,268 = 780,268/x
3. Step 3: Cross multiply
   377,012x = 780,268 × 780,268
4. Step 4: Simplify right side
   377,012x = 608,818,151,824
5. Step 5: Solve for x
   x = 608,818,151,824/377,012
6. Step 6: Final answer
   x = 1,614,850.86