Finding the Third Proportional to 563,872 and 1,215,768

Step by Step Solution

1. Step 1: Write the proportion equation
   563,872 : 1,215,768 = 1,215,768 : x
2. Step 2: Convert to fraction form
   563,872/1,215,768 = 1,215,768/x
3. Step 3: Cross multiply
   563,872x = 1,215,768 × 1,215,768
4. Step 4: Simplify right side
   563,872x = 1,478,091,829,824
5. Step 5: Solve for x
   x = 1,478,091,829,824/563,872
6. Step 6: Final answer
   x = 2,621,325.11