Finding the Third Proportional to 653,642 and 1,407,382

Step by Step Solution

1. Step 1: Write the proportion equation
   653,642 : 1,407,382 = 1,407,382 : x
2. Step 2: Convert to fraction form
   653,642/1,407,382 = 1,407,382/x
3. Step 3: Cross multiply
   653,642x = 1,407,382 × 1,407,382
4. Step 4: Simplify right side
   653,642x = 1,980,724,093,924
5. Step 5: Solve for x
   x = 1,980,724,093,924/653,642
6. Step 6: Final answer
   x = 3,030,288.90