Finding the Third Proportional to 545,904 and 872,012

Step by Step Solution

1. Step 1: Write the proportion equation
   545,904 : 872,012 = 872,012 : x
2. Step 2: Convert to fraction form
   545,904/872,012 = 872,012/x
3. Step 3: Cross multiply
   545,904x = 872,012 × 872,012
4. Step 4: Simplify right side
   545,904x = 760,404,928,144
5. Step 5: Solve for x
   x = 760,404,928,144/545,904
6. Step 6: Final answer
   x = 1,392,927.93