Finding the Third Proportional to 58,492.50 and 128,118

Step by Step Solution

1. Step 1: Write the proportion equation
   58,492.50 : 128,118 = 128,118 : x
2. Step 2: Convert to fraction form
   58,492.50/128,118 = 128,118/x
3. Step 3: Cross multiply
   58,492.50x = 128,118 × 128,118
4. Step 4: Simplify right side
   58,492.50x = 16,414,221,924
5. Step 5: Solve for x
   x = 16,414,221,924/58,492.50
6. Step 6: Final answer
   x = 280,620.97