Finding the Third Proportional to 978,667.50 and 2,149,791

Step by Step Solution

1. Step 1: Write the proportion equation
   978,667.50 : 2,149,791 = 2,149,791 : x
2. Step 2: Convert to fraction form
   978,667.50/2,149,791 = 2,149,791/x
3. Step 3: Cross multiply
   978,667.50x = 2,149,791 × 2,149,791
4. Step 4: Simplify right side
   978,667.50x = 4,621,601,343,681
5. Step 5: Solve for x
   x = 4,621,601,343,681/978,667.50
6. Step 6: Final answer
   x = 4,722,340.68