Finding the Third Proportional to 1,021,480 and 2,072,144

Step by Step Solution

1. Step 1: Write the proportion equation
   1,021,480 : 2,072,144 = 2,072,144 : x
2. Step 2: Convert to fraction form
   1,021,480/2,072,144 = 2,072,144/x
3. Step 3: Cross multiply
   1,021,480x = 2,072,144 × 2,072,144
4. Step 4: Simplify right side
   1,021,480x = 4,293,780,756,736
5. Step 5: Solve for x
   x = 4,293,780,756,736/1,021,480
6. Step 6: Final answer
   x = 4,203,489.80