Finding the Third Proportional to 58,603.50 and 128,232

Step by Step Solution

1. Step 1: Write the proportion equation
   58,603.50 : 128,232 = 128,232 : x
2. Step 2: Convert to fraction form
   58,603.50/128,232 = 128,232/x
3. Step 3: Cross multiply
   58,603.50x = 128,232 × 128,232
4. Step 4: Simplify right side
   58,603.50x = 16,443,445,824
5. Step 5: Solve for x
   x = 16,443,445,824/58,603.50
6. Step 6: Final answer
   x = 280,588.12