Finding the Third Proportional to 63,500 and 139,453

Step by Step Solution

1. Step 1: Write the proportion equation
   63,500 : 139,453 = 139,453 : x
2. Step 2: Convert to fraction form
   63,500/139,453 = 139,453/x
3. Step 3: Cross multiply
   63,500x = 139,453 × 139,453
4. Step 4: Simplify right side
   63,500x = 19,447,139,209
5. Step 5: Solve for x
   x = 19,447,139,209/63,500
6. Step 6: Final answer
   x = 306,254.16