Finding the Third Proportional to 364,996 and 780,434

Step by Step Solution

1. Step 1: Write the proportion equation
   364,996 : 780,434 = 780,434 : x
2. Step 2: Convert to fraction form
   364,996/780,434 = 780,434/x
3. Step 3: Cross multiply
   364,996x = 780,434 × 780,434
4. Step 4: Simplify right side
   364,996x = 609,077,228,356
5. Step 5: Solve for x
   x = 609,077,228,356/364,996
6. Step 6: Final answer
   x = 1,668,723.02