Finding the Third Proportional to 507,672 and 1,128,816

Step by Step Solution

1. Step 1: Write the proportion equation
   507,672 : 1,128,816 = 1,128,816 : x
2. Step 2: Convert to fraction form
   507,672/1,128,816 = 1,128,816/x
3. Step 3: Cross multiply
   507,672x = 1,128,816 × 1,128,816
4. Step 4: Simplify right side
   507,672x = 1,274,225,561,856
5. Step 5: Solve for x
   x = 1,274,225,561,856/507,672
6. Step 6: Final answer
   x = 2,509,938.63