Finding the Third Proportional to 139,446.56 and 302,076.56

Step by Step Solution

1. Step 1: Write the proportion equation
   139,446.56 : 302,076.56 = 302,076.56 : x
2. Step 2: Convert to fraction form
   139,446.56/302,076.56 = 302,076.56/x
3. Step 3: Cross multiply
   139,446.56x = 302,076.56 × 302,076.56
4. Step 4: Simplify right side
   139,446.56x = 91,250,249,611.82
5. Step 5: Solve for x
   x = 91,250,249,611.82/139,446.56
6. Step 6: Final answer
   x = 654,374.32