Finding the Third Proportional to 774,192 and 1,216,584

Step by Step Solution

1. Step 1: Write the proportion equation
   774,192 : 1,216,584 = 1,216,584 : x
2. Step 2: Convert to fraction form
   774,192/1,216,584 = 1,216,584/x
3. Step 3: Cross multiply
   774,192x = 1,216,584 × 1,216,584
4. Step 4: Simplify right side
   774,192x = 1,480,076,629,056
5. Step 5: Solve for x
   x = 1,480,076,629,056/774,192
6. Step 6: Final answer
   x = 1,911,769.47