Finding the Third Proportional to 91,513.50 and 136,468.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,513.50 : 136,468.50 = 136,468.50 : x
2. Step 2: Convert to fraction form
   91,513.50/136,468.50 = 136,468.50/x
3. Step 3: Cross multiply
   91,513.50x = 136,468.50 × 136,468.50
4. Step 4: Simplify right side
   91,513.50x = 18,623,651,492.25
5. Step 5: Solve for x
   x = 18,623,651,492.25/91,513.50
6. Step 6: Final answer
   x = 203,507.15