Finding the Third Proportional to 560,400 and 1,216,060

Step by Step Solution

1. Step 1: Write the proportion equation
   560,400 : 1,216,060 = 1,216,060 : x
2. Step 2: Convert to fraction form
   560,400/1,216,060 = 1,216,060/x
3. Step 3: Cross multiply
   560,400x = 1,216,060 × 1,216,060
4. Step 4: Simplify right side
   560,400x = 1,478,801,923,600
5. Step 5: Solve for x
   x = 1,478,801,923,600/560,400
6. Step 6: Final answer
   x = 2,638,832.84