Finding the Third Proportional to 144,352.50 and 314,907

Step by Step Solution

1. Step 1: Write the proportion equation
   144,352.50 : 314,907 = 314,907 : x
2. Step 2: Convert to fraction form
   144,352.50/314,907 = 314,907/x
3. Step 3: Cross multiply
   144,352.50x = 314,907 × 314,907
4. Step 4: Simplify right side
   144,352.50x = 99,166,418,649
5. Step 5: Solve for x
   x = 99,166,418,649/144,352.50
6. Step 6: Final answer
   x = 686,974.03