Finding the Third Proportional to 913,008 and 1,405,128

Step by Step Solution

1. Step 1: Write the proportion equation
   913,008 : 1,405,128 = 1,405,128 : x
2. Step 2: Convert to fraction form
   913,008/1,405,128 = 1,405,128/x
3. Step 3: Cross multiply
   913,008x = 1,405,128 × 1,405,128
4. Step 4: Simplify right side
   913,008x = 1,974,384,696,384
5. Step 5: Solve for x
   x = 1,974,384,696,384/913,008
6. Step 6: Final answer
   x = 2,162,505.36