Finding the Third Proportional to 900,072 and 1,265,892

Step by Step Solution

1. Step 1: Write the proportion equation
   900,072 : 1,265,892 = 1,265,892 : x
2. Step 2: Convert to fraction form
   900,072/1,265,892 = 1,265,892/x
3. Step 3: Cross multiply
   900,072x = 1,265,892 × 1,265,892
4. Step 4: Simplify right side
   900,072x = 1,602,482,555,664
5. Step 5: Solve for x
   x = 1,602,482,555,664/900,072
6. Step 6: Final answer
   x = 1,780,393.74