Finding the Third Proportional to 785,430 and 1,209,036

Step by Step Solution

1. Step 1: Write the proportion equation
   785,430 : 1,209,036 = 1,209,036 : x
2. Step 2: Convert to fraction form
   785,430/1,209,036 = 1,209,036/x
3. Step 3: Cross multiply
   785,430x = 1,209,036 × 1,209,036
4. Step 4: Simplify right side
   785,430x = 1,461,768,049,296
5. Step 5: Solve for x
   x = 1,461,768,049,296/785,430
6. Step 6: Final answer
   x = 1,861,105.44