Finding the Third Proportional to 788,404 and 1,213,494

Step by Step Solution

1. Step 1: Write the proportion equation
   788,404 : 1,213,494 = 1,213,494 : x
2. Step 2: Convert to fraction form
   788,404/1,213,494 = 1,213,494/x
3. Step 3: Cross multiply
   788,404x = 1,213,494 × 1,213,494
4. Step 4: Simplify right side
   788,404x = 1,472,567,688,036
5. Step 5: Solve for x
   x = 1,472,567,688,036/788,404
6. Step 6: Final answer
   x = 1,867,783.13