Finding the Third Proportional to 1,105,407 and 1,678,051.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105,407 : 1,678,051.69 = 1,678,051.69 : x
2. Step 2: Convert to fraction form
   1,105,407/1,678,051.69 = 1,678,051.69/x
3. Step 3: Cross multiply
   1,105,407x = 1,678,051.69 × 1,678,051.69
4. Step 4: Simplify right side
   1,105,407x = 2,815,857,465,921.60
5. Step 5: Solve for x
   x = 2,815,857,465,921.60/1,105,407
6. Step 6: Final answer
   x = 2,547,349.05