Finding the Third Proportional to 609,188 and 1,339,864

Step by Step Solution

1. Step 1: Write the proportion equation
   609,188 : 1,339,864 = 1,339,864 : x
2. Step 2: Convert to fraction form
   609,188/1,339,864 = 1,339,864/x
3. Step 3: Cross multiply
   609,188x = 1,339,864 × 1,339,864
4. Step 4: Simplify right side
   609,188x = 1,795,235,538,496
5. Step 5: Solve for x
   x = 1,795,235,538,496/609,188
6. Step 6: Final answer
   x = 2,946,931.88