Finding the Third Proportional to 1,572,128 and 3,368,536

Step by Step Solution

1. Step 1: Write the proportion equation
   1,572,128 : 3,368,536 = 3,368,536 : x
2. Step 2: Convert to fraction form
   1,572,128/3,368,536 = 3,368,536/x
3. Step 3: Cross multiply
   1,572,128x = 3,368,536 × 3,368,536
4. Step 4: Simplify right side
   1,572,128x = 11,347,034,783,296
5. Step 5: Solve for x
   x = 11,347,034,783,296/1,572,128
6. Step 6: Final answer
   x = 7,217,627.82