Finding the Third Proportional to 148,700 and 304,648

Step by Step Solution

1. Step 1: Write the proportion equation
   148,700 : 304,648 = 304,648 : x
2. Step 2: Convert to fraction form
   148,700/304,648 = 304,648/x
3. Step 3: Cross multiply
   148,700x = 304,648 × 304,648
4. Step 4: Simplify right side
   148,700x = 92,810,403,904
5. Step 5: Solve for x
   x = 92,810,403,904/148,700
6. Step 6: Final answer
   x = 624,145.29