Finding the Third Proportional to 307,173 and 480,824.63

Step by Step Solution

1. Step 1: Write the proportion equation
   307,173 : 480,824.63 = 480,824.63 : x
2. Step 2: Convert to fraction form
   307,173/480,824.63 = 480,824.63/x
3. Step 3: Cross multiply
   307,173x = 480,824.63 × 480,824.63
4. Step 4: Simplify right side
   307,173x = 231,192,320,006.39
5. Step 5: Solve for x
   x = 231,192,320,006.39/307,173
6. Step 6: Final answer
   x = 752,645.32