Finding the Third Proportional to 1,071,440 and 1,455,144

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071,440 : 1,455,144 = 1,455,144 : x
2. Step 2: Convert to fraction form
   1,071,440/1,455,144 = 1,455,144/x
3. Step 3: Cross multiply
   1,071,440x = 1,455,144 × 1,455,144
4. Step 4: Simplify right side
   1,071,440x = 2,117,444,060,736
5. Step 5: Solve for x
   x = 2,117,444,060,736/1,071,440
6. Step 6: Final answer
   x = 1,976,260.04