Finding the Third Proportional to 650,878 and 978,200

Step by Step Solution

1. Step 1: Write the proportion equation
   650,878 : 978,200 = 978,200 : x
2. Step 2: Convert to fraction form
   650,878/978,200 = 978,200/x
3. Step 3: Cross multiply
   650,878x = 978,200 × 978,200
4. Step 4: Simplify right side
   650,878x = 956,875,240,000
5. Step 5: Solve for x
   x = 956,875,240,000/650,878
6. Step 6: Final answer
   x = 1,470,129.95