Finding the Third Proportional to 1,057,401 and 1,507,369.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,057,401 : 1,507,369.50 = 1,507,369.50 : x
2. Step 2: Convert to fraction form
   1,057,401/1,507,369.50 = 1,507,369.50/x
3. Step 3: Cross multiply
   1,057,401x = 1,507,369.50 × 1,507,369.50
4. Step 4: Simplify right side
   1,057,401x = 2,272,162,809,530.25
5. Step 5: Solve for x
   x = 2,272,162,809,530.25/1,057,401
6. Step 6: Final answer
   x = 2,148,818.48