Finding the Third Proportional to 772,382 and 1,615,386

Step by Step Solution

1. Step 1: Write the proportion equation
   772,382 : 1,615,386 = 1,615,386 : x
2. Step 2: Convert to fraction form
   772,382/1,615,386 = 1,615,386/x
3. Step 3: Cross multiply
   772,382x = 1,615,386 × 1,615,386
4. Step 4: Simplify right side
   772,382x = 2,609,471,928,996
5. Step 5: Solve for x
   x = 2,609,471,928,996/772,382
6. Step 6: Final answer
   x = 3,378,473.25