Finding the Third Proportional to 1,577,718 and 3,453,921

Step by Step Solution

1. Step 1: Write the proportion equation
   1,577,718 : 3,453,921 = 3,453,921 : x
2. Step 2: Convert to fraction form
   1,577,718/3,453,921 = 3,453,921/x
3. Step 3: Cross multiply
   1,577,718x = 3,453,921 × 3,453,921
4. Step 4: Simplify right side
   1,577,718x = 11,929,570,274,241
5. Step 5: Solve for x
   x = 11,929,570,274,241/1,577,718
6. Step 6: Final answer
   x = 7,561,281.72