Finding the Third Proportional to 139,804.50 and 304,185

Step by Step Solution

1. Step 1: Write the proportion equation
   139,804.50 : 304,185 = 304,185 : x
2. Step 2: Convert to fraction form
   139,804.50/304,185 = 304,185/x
3. Step 3: Cross multiply
   139,804.50x = 304,185 × 304,185
4. Step 4: Simplify right side
   139,804.50x = 92,528,514,225
5. Step 5: Solve for x
   x = 92,528,514,225/139,804.50
6. Step 6: Final answer
   x = 661,842.17