Finding the Third Proportional to 520,309 and 1,054,972

Step by Step Solution

1. Step 1: Write the proportion equation
   520,309 : 1,054,972 = 1,054,972 : x
2. Step 2: Convert to fraction form
   520,309/1,054,972 = 1,054,972/x
3. Step 3: Cross multiply
   520,309x = 1,054,972 × 1,054,972
4. Step 4: Simplify right side
   520,309x = 1,112,965,920,784
5. Step 5: Solve for x
   x = 1,112,965,920,784/520,309
6. Step 6: Final answer
   x = 2,139,047.99