Finding the Third Proportional to 1,401,438 and 2,164,263

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401,438 : 2,164,263 = 2,164,263 : x
2. Step 2: Convert to fraction form
   1,401,438/2,164,263 = 2,164,263/x
3. Step 3: Cross multiply
   1,401,438x = 2,164,263 × 2,164,263
4. Step 4: Simplify right side
   1,401,438x = 4,684,034,333,169
5. Step 5: Solve for x
   x = 4,684,034,333,169/1,401,438
6. Step 6: Final answer
   x = 3,342,305.78