Finding the Third Proportional to 1,257,525 and 1,777,666.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,257,525 : 1,777,666.50 = 1,777,666.50 : x
2. Step 2: Convert to fraction form
   1,257,525/1,777,666.50 = 1,777,666.50/x
3. Step 3: Cross multiply
   1,257,525x = 1,777,666.50 × 1,777,666.50
4. Step 4: Simplify right side
   1,257,525x = 3,160,098,185,222.25
5. Step 5: Solve for x
   x = 3,160,098,185,222.25/1,257,525
6. Step 6: Final answer
   x = 2,512,950.59