Finding the Third Proportional to 842,144 and 1,870,912

Step by Step Solution

1. Step 1: Write the proportion equation
   842,144 : 1,870,912 = 1,870,912 : x
2. Step 2: Convert to fraction form
   842,144/1,870,912 = 1,870,912/x
3. Step 3: Cross multiply
   842,144x = 1,870,912 × 1,870,912
4. Step 4: Simplify right side
   842,144x = 3,500,311,711,744
5. Step 5: Solve for x
   x = 3,500,311,711,744/842,144
6. Step 6: Final answer
   x = 4,156,428.96