Finding the Third Proportional to 654,806 and 978,176.50

Step by Step Solution

1. Step 1: Write the proportion equation
   654,806 : 978,176.50 = 978,176.50 : x
2. Step 2: Convert to fraction form
   654,806/978,176.50 = 978,176.50/x
3. Step 3: Cross multiply
   654,806x = 978,176.50 × 978,176.50
4. Step 4: Simplify right side
   654,806x = 956,829,265,152.25
5. Step 5: Solve for x
   x = 956,829,265,152.25/654,806
6. Step 6: Final answer
   x = 1,461,240.83