Finding the Third Proportional to 157,986 and 242,258.50

Step by Step Solution

1. Step 1: Write the proportion equation
   157,986 : 242,258.50 = 242,258.50 : x
2. Step 2: Convert to fraction form
   157,986/242,258.50 = 242,258.50/x
3. Step 3: Cross multiply
   157,986x = 242,258.50 × 242,258.50
4. Step 4: Simplify right side
   157,986x = 58,689,180,822.25
5. Step 5: Solve for x
   x = 58,689,180,822.25/157,986
6. Step 6: Final answer
   x = 371,483.43