Finding the Third Proportional to 615,883.50 and 978,075

Step by Step Solution

1. Step 1: Write the proportion equation
   615,883.50 : 978,075 = 978,075 : x
2. Step 2: Convert to fraction form
   615,883.50/978,075 = 978,075/x
3. Step 3: Cross multiply
   615,883.50x = 978,075 × 978,075
4. Step 4: Simplify right side
   615,883.50x = 956,630,705,625
5. Step 5: Solve for x
   x = 956,630,705,625/615,883.50
6. Step 6: Final answer
   x = 1,553,265.68