Finding the Third Proportional to 163,606.50 and 356,778

Step by Step Solution

1. Step 1: Write the proportion equation
   163,606.50 : 356,778 = 356,778 : x
2. Step 2: Convert to fraction form
   163,606.50/356,778 = 356,778/x
3. Step 3: Cross multiply
   163,606.50x = 356,778 × 356,778
4. Step 4: Simplify right side
   163,606.50x = 127,290,541,284
5. Step 5: Solve for x
   x = 127,290,541,284/163,606.50
6. Step 6: Final answer
   x = 778,028.63