Finding the Third Proportional to 139,075.50 and 304,395

Step by Step Solution

1. Step 1: Write the proportion equation
   139,075.50 : 304,395 = 304,395 : x
2. Step 2: Convert to fraction form
   139,075.50/304,395 = 304,395/x
3. Step 3: Cross multiply
   139,075.50x = 304,395 × 304,395
4. Step 4: Simplify right side
   139,075.50x = 92,656,316,025
5. Step 5: Solve for x
   x = 92,656,316,025/139,075.50
6. Step 6: Final answer
   x = 666,230.33