Finding the Third Proportional to 1,021,916 and 2,109,432

Step by Step Solution

1. Step 1: Write the proportion equation
   1,021,916 : 2,109,432 = 2,109,432 : x
2. Step 2: Convert to fraction form
   1,021,916/2,109,432 = 2,109,432/x
3. Step 3: Cross multiply
   1,021,916x = 2,109,432 × 2,109,432
4. Step 4: Simplify right side
   1,021,916x = 4,449,703,362,624
5. Step 5: Solve for x
   x = 4,449,703,362,624/1,021,916
6. Step 6: Final answer
   x = 4,354,275.07