Finding the Third Proportional to 688,954.50 and 979,848

Step by Step Solution

1. Step 1: Write the proportion equation
   688,954.50 : 979,848 = 979,848 : x
2. Step 2: Convert to fraction form
   688,954.50/979,848 = 979,848/x
3. Step 3: Cross multiply
   688,954.50x = 979,848 × 979,848
4. Step 4: Simplify right side
   688,954.50x = 960,102,103,104
5. Step 5: Solve for x
   x = 960,102,103,104/688,954.50
6. Step 6: Final answer
   x = 1,393,563.88