Finding the Third Proportional to 560,407 and 1,216,074

Step by Step Solution

1. Step 1: Write the proportion equation
   560,407 : 1,216,074 = 1,216,074 : x
2. Step 2: Convert to fraction form
   560,407/1,216,074 = 1,216,074/x
3. Step 3: Cross multiply
   560,407x = 1,216,074 × 1,216,074
4. Step 4: Simplify right side
   560,407x = 1,478,835,973,476
5. Step 5: Solve for x
   x = 1,478,835,973,476/560,407
6. Step 6: Final answer
   x = 2,638,860.64