Finding the Third Proportional to 654,903 and 978,310.50

Step by Step Solution

1. Step 1: Write the proportion equation
   654,903 : 978,310.50 = 978,310.50 : x
2. Step 2: Convert to fraction form
   654,903/978,310.50 = 978,310.50/x
3. Step 3: Cross multiply
   654,903x = 978,310.50 × 978,310.50
4. Step 4: Simplify right side
   654,903x = 957,091,434,410.25
5. Step 5: Solve for x
   x = 957,091,434,410.25/654,903
6. Step 6: Final answer
   x = 1,461,424.72