Finding the Third Proportional to 619,404 and 902,141

Step by Step Solution

1. Step 1: Write the proportion equation
   619,404 : 902,141 = 902,141 : x
2. Step 2: Convert to fraction form
   619,404/902,141 = 902,141/x
3. Step 3: Cross multiply
   619,404x = 902,141 × 902,141
4. Step 4: Simplify right side
   619,404x = 813,858,383,881
5. Step 5: Solve for x
   x = 813,858,383,881/619,404
6. Step 6: Final answer
   x = 1,313,937.89