Finding the Third Proportional to 109,620 and 236,725.50

Step by Step Solution

1. Step 1: Write the proportion equation
   109,620 : 236,725.50 = 236,725.50 : x
2. Step 2: Convert to fraction form
   109,620/236,725.50 = 236,725.50/x
3. Step 3: Cross multiply
   109,620x = 236,725.50 × 236,725.50
4. Step 4: Simplify right side
   109,620x = 56,038,962,350.25
5. Step 5: Solve for x
   x = 56,038,962,350.25/109,620
6. Step 6: Final answer
   x = 511,211.11