Finding the Third Proportional to 1,577,678 and 3,453,876

Step by Step Solution

1. Step 1: Write the proportion equation
   1,577,678 : 3,453,876 = 3,453,876 : x
2. Step 2: Convert to fraction form
   1,577,678/3,453,876 = 3,453,876/x
3. Step 3: Cross multiply
   1,577,678x = 3,453,876 × 3,453,876
4. Step 4: Simplify right side
   1,577,678x = 11,929,259,423,376
5. Step 5: Solve for x
   x = 11,929,259,423,376/1,577,678
6. Step 6: Final answer
   x = 7,561,276.40