Finding the Third Proportional to 505,445 and 1,111,978

Step by Step Solution

1. Step 1: Write the proportion equation
   505,445 : 1,111,978 = 1,111,978 : x
2. Step 2: Convert to fraction form
   505,445/1,111,978 = 1,111,978/x
3. Step 3: Cross multiply
   505,445x = 1,111,978 × 1,111,978
4. Step 4: Simplify right side
   505,445x = 1,236,495,072,484
5. Step 5: Solve for x
   x = 1,236,495,072,484/505,445
6. Step 6: Final answer
   x = 2,446,349.40