Finding the Third Proportional to 636,213 and 1,384,373

Step by Step Solution

1. Step 1: Write the proportion equation
   636,213 : 1,384,373 = 1,384,373 : x
2. Step 2: Convert to fraction form
   636,213/1,384,373 = 1,384,373/x
3. Step 3: Cross multiply
   636,213x = 1,384,373 × 1,384,373
4. Step 4: Simplify right side
   636,213x = 1,916,488,603,129
5. Step 5: Solve for x
   x = 1,916,488,603,129/636,213
6. Step 6: Final answer
   x = 3,012,338.01