Finding the Third Proportional to 677,189.53 and 1,410,429.38

Step by Step Solution

1. Step 1: Write the proportion equation
   677,189.53 : 1,410,429.38 = 1,410,429.38 : x
2. Step 2: Convert to fraction form
   677,189.53/1,410,429.38 = 1,410,429.38/x
3. Step 3: Cross multiply
   677,189.53x = 1,410,429.38 × 1,410,429.38
4. Step 4: Simplify right side
   677,189.53x = 1,989,311,021,862.89
5. Step 5: Solve for x
   x = 1,989,311,021,862.89/677,189.53
6. Step 6: Final answer
   x = 2,937,598.60