Finding the Third Proportional to 1,577,728 and 3,455,781

Step by Step Solution

1. Step 1: Write the proportion equation
   1,577,728 : 3,455,781 = 3,455,781 : x
2. Step 2: Convert to fraction form
   1,577,728/3,455,781 = 3,455,781/x
3. Step 3: Cross multiply
   1,577,728x = 3,455,781 × 3,455,781
4. Step 4: Simplify right side
   1,577,728x = 11,942,422,319,961
5. Step 5: Solve for x
   x = 11,942,422,319,961/1,577,728
6. Step 6: Final answer
   x = 7,569,379.72