Finding the Third Proportional to 900,937 and 1,213,503

Step by Step Solution

1. Step 1: Write the proportion equation
   900,937 : 1,213,503 = 1,213,503 : x
2. Step 2: Convert to fraction form
   900,937/1,213,503 = 1,213,503/x
3. Step 3: Cross multiply
   900,937x = 1,213,503 × 1,213,503
4. Step 4: Simplify right side
   900,937x = 1,472,589,531,009
5. Step 5: Solve for x
   x = 1,472,589,531,009/900,937
6. Step 6: Final answer
   x = 1,634,508.88