Finding the Third Proportional to 1,347,478 and 2,021,215

Step by Step Solution

1. Step 1: Write the proportion equation
   1,347,478 : 2,021,215 = 2,021,215 : x
2. Step 2: Convert to fraction form
   1,347,478/2,021,215 = 2,021,215/x
3. Step 3: Cross multiply
   1,347,478x = 2,021,215 × 2,021,215
4. Step 4: Simplify right side
   1,347,478x = 4,085,310,076,225
5. Step 5: Solve for x
   x = 4,085,310,076,225/1,347,478
6. Step 6: Final answer
   x = 3,031,819.50