Finding the Third Proportional to 320,229 and 693,054

Step by Step Solution

1. Step 1: Write the proportion equation
   320,229 : 693,054 = 693,054 : x
2. Step 2: Convert to fraction form
   320,229/693,054 = 693,054/x
3. Step 3: Cross multiply
   320,229x = 693,054 × 693,054
4. Step 4: Simplify right side
   320,229x = 480,323,846,916
5. Step 5: Solve for x
   x = 480,323,846,916/320,229
6. Step 6: Final answer
   x = 1,499,938.63