Finding the Third Proportional to 561,107 and 1,210,788

Step by Step Solution

1. Step 1: Write the proportion equation
   561,107 : 1,210,788 = 1,210,788 : x
2. Step 2: Convert to fraction form
   561,107/1,210,788 = 1,210,788/x
3. Step 3: Cross multiply
   561,107x = 1,210,788 × 1,210,788
4. Step 4: Simplify right side
   561,107x = 1,466,007,580,944
5. Step 5: Solve for x
   x = 1,466,007,580,944/561,107
6. Step 6: Final answer
   x = 2,612,705.92