Finding the Third Proportional to 315,738 and 697,936.50

Step by Step Solution

1. Step 1: Write the proportion equation
   315,738 : 697,936.50 = 697,936.50 : x
2. Step 2: Convert to fraction form
   315,738/697,936.50 = 697,936.50/x
3. Step 3: Cross multiply
   315,738x = 697,936.50 × 697,936.50
4. Step 4: Simplify right side
   315,738x = 487,115,358,032.25
5. Step 5: Solve for x
   x = 487,115,358,032.25/315,738
6. Step 6: Final answer
   x = 1,542,783.44