Finding the Third Proportional to 1,243,916 and 2,613,164

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243,916 : 2,613,164 = 2,613,164 : x
2. Step 2: Convert to fraction form
   1,243,916/2,613,164 = 2,613,164/x
3. Step 3: Cross multiply
   1,243,916x = 2,613,164 × 2,613,164
4. Step 4: Simplify right side
   1,243,916x = 6,828,626,090,896
5. Step 5: Solve for x
   x = 6,828,626,090,896/1,243,916
6. Step 6: Final answer
   x = 5,489,619.95