Finding the Third Proportional to 978,654 and 2,149,764

Step by Step Solution

1. Step 1: Write the proportion equation
   978,654 : 2,149,764 = 2,149,764 : x
2. Step 2: Convert to fraction form
   978,654/2,149,764 = 2,149,764/x
3. Step 3: Cross multiply
   978,654x = 2,149,764 × 2,149,764
4. Step 4: Simplify right side
   978,654x = 4,621,485,255,696
5. Step 5: Solve for x
   x = 4,621,485,255,696/978,654
6. Step 6: Final answer
   x = 4,722,287.20