Finding the Third Proportional to 362,434.50 and 777,357

Step by Step Solution

1. Step 1: Write the proportion equation
   362,434.50 : 777,357 = 777,357 : x
2. Step 2: Convert to fraction form
   362,434.50/777,357 = 777,357/x
3. Step 3: Cross multiply
   362,434.50x = 777,357 × 777,357
4. Step 4: Simplify right side
   362,434.50x = 604,283,905,449
5. Step 5: Solve for x
   x = 604,283,905,449/362,434.50
6. Step 6: Final answer
   x = 1,667,291.35