Finding the Third Proportional to 139,468.31 and 304,922.25

Step by Step Solution

1. Step 1: Write the proportion equation
   139,468.31 : 304,922.25 = 304,922.25 : x
2. Step 2: Convert to fraction form
   139,468.31/304,922.25 = 304,922.25/x
3. Step 3: Cross multiply
   139,468.31x = 304,922.25 × 304,922.25
4. Step 4: Simplify right side
   139,468.31x = 92,977,578,545.06
5. Step 5: Solve for x
   x = 92,977,578,545.06/139,468.31
6. Step 6: Final answer
   x = 666,657.37