Finding the Third Proportional to 447,507 and 978,302

Step by Step Solution

1. Step 1: Write the proportion equation
   447,507 : 978,302 = 978,302 : x
2. Step 2: Convert to fraction form
   447,507/978,302 = 978,302/x
3. Step 3: Cross multiply
   447,507x = 978,302 × 978,302
4. Step 4: Simplify right side
   447,507x = 957,074,803,204
5. Step 5: Solve for x
   x = 957,074,803,204/447,507
6. Step 6: Final answer
   x = 2,138,681.19