Finding the Third Proportional to 1,057,647 and 1,611,256.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,057,647 : 1,611,256.50 = 1,611,256.50 : x
2. Step 2: Convert to fraction form
   1,057,647/1,611,256.50 = 1,611,256.50/x
3. Step 3: Cross multiply
   1,057,647x = 1,611,256.50 × 1,611,256.50
4. Step 4: Simplify right side
   1,057,647x = 2,596,147,508,792.25
5. Step 5: Solve for x
   x = 2,596,147,508,792.25/1,057,647
6. Step 6: Final answer
   x = 2,454,644.61