Finding the Third Proportional to 141,844.50 and 309,447

Step by Step Solution

1. Step 1: Write the proportion equation
   141,844.50 : 309,447 = 309,447 : x
2. Step 2: Convert to fraction form
   141,844.50/309,447 = 309,447/x
3. Step 3: Cross multiply
   141,844.50x = 309,447 × 309,447
4. Step 4: Simplify right side
   141,844.50x = 95,757,445,809
5. Step 5: Solve for x
   x = 95,757,445,809/141,844.50
6. Step 6: Final answer
   x = 675,087.48