Finding the Third Proportional to 202,477.50 and 314,328

Step by Step Solution

1. Step 1: Write the proportion equation
   202,477.50 : 314,328 = 314,328 : x
2. Step 2: Convert to fraction form
   202,477.50/314,328 = 314,328/x
3. Step 3: Cross multiply
   202,477.50x = 314,328 × 314,328
4. Step 4: Simplify right side
   202,477.50x = 98,802,091,584
5. Step 5: Solve for x
   x = 98,802,091,584/202,477.50
6. Step 6: Final answer
   x = 487,965.78