Finding the Third Proportional to 469,137.38 and 776,494.69

Step by Step Solution

1. Step 1: Write the proportion equation
   469,137.38 : 776,494.69 = 776,494.69 : x
2. Step 2: Convert to fraction form
   469,137.38/776,494.69 = 776,494.69/x
3. Step 3: Cross multiply
   469,137.38x = 776,494.69 × 776,494.69
4. Step 4: Simplify right side
   469,137.38x = 602,943,999,715.72
5. Step 5: Solve for x
   x = 602,943,999,715.72/469,137.38
6. Step 6: Final answer
   x = 1,285,218.43