Finding the Third Proportional to 1,815,570 and 2,638,224

Step by Step Solution

1. Step 1: Write the proportion equation
   1,815,570 : 2,638,224 = 2,638,224 : x
2. Step 2: Convert to fraction form
   1,815,570/2,638,224 = 2,638,224/x
3. Step 3: Cross multiply
   1,815,570x = 2,638,224 × 2,638,224
4. Step 4: Simplify right side
   1,815,570x = 6,960,225,874,176
5. Step 5: Solve for x
   x = 6,960,225,874,176/1,815,570
6. Step 6: Final answer
   x = 3,833,631.24