Finding the Third Proportional to 688,300.50 and 967,557

Step by Step Solution

1. Step 1: Write the proportion equation
   688,300.50 : 967,557 = 967,557 : x
2. Step 2: Convert to fraction form
   688,300.50/967,557 = 967,557/x
3. Step 3: Cross multiply
   688,300.50x = 967,557 × 967,557
4. Step 4: Simplify right side
   688,300.50x = 936,166,548,249
5. Step 5: Solve for x
   x = 936,166,548,249/688,300.50
6. Step 6: Final answer
   x = 1,360,113.13