Finding the Third Proportional to 1,485,438 and 2,242,368

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485,438 : 2,242,368 = 2,242,368 : x
2. Step 2: Convert to fraction form
   1,485,438/2,242,368 = 2,242,368/x
3. Step 3: Cross multiply
   1,485,438x = 2,242,368 × 2,242,368
4. Step 4: Simplify right side
   1,485,438x = 5,028,214,247,424
5. Step 5: Solve for x
   x = 5,028,214,247,424/1,485,438
6. Step 6: Final answer
   x = 3,385,004.45