Finding the Third Proportional to 379,892.53 and 810,622.69

Step by Step Solution

1. Step 1: Write the proportion equation
   379,892.53 : 810,622.69 = 810,622.69 : x
2. Step 2: Convert to fraction form
   379,892.53/810,622.69 = 810,622.69/x
3. Step 3: Cross multiply
   379,892.53x = 810,622.69 × 810,622.69
4. Step 4: Simplify right side
   379,892.53x = 657,109,141,489.72
5. Step 5: Solve for x
   x = 657,109,141,489.72/379,892.53
6. Step 6: Final answer
   x = 1,729,723.77