Finding the Third Proportional to 772,348 and 1,615,278

Step by Step Solution

1. Step 1: Write the proportion equation
   772,348 : 1,615,278 = 1,615,278 : x
2. Step 2: Convert to fraction form
   772,348/1,615,278 = 1,615,278/x
3. Step 3: Cross multiply
   772,348x = 1,615,278 × 1,615,278
4. Step 4: Simplify right side
   772,348x = 2,609,123,017,284
5. Step 5: Solve for x
   x = 2,609,123,017,284/772,348
6. Step 6: Final answer
   x = 3,378,170.23