Finding the Third Proportional to 1,572,445 and 3,439,311

Step by Step Solution

1. Step 1: Write the proportion equation
   1,572,445 : 3,439,311 = 3,439,311 : x
2. Step 2: Convert to fraction form
   1,572,445/3,439,311 = 3,439,311/x
3. Step 3: Cross multiply
   1,572,445x = 3,439,311 × 3,439,311
4. Step 4: Simplify right side
   1,572,445x = 11,828,860,154,721
5. Step 5: Solve for x
   x = 11,828,860,154,721/1,572,445
6. Step 6: Final answer
   x = 7,522,590.71