Finding the Third Proportional to 91,385.72 and 136,317.94

Step by Step Solution

1. Step 1: Write the proportion equation
   91,385.72 : 136,317.94 = 136,317.94 : x
2. Step 2: Convert to fraction form
   91,385.72/136,317.94 = 136,317.94/x
3. Step 3: Cross multiply
   91,385.72x = 136,317.94 × 136,317.94
4. Step 4: Simplify right side
   91,385.72x = 18,582,580,084.25
5. Step 5: Solve for x
   x = 18,582,580,084.25/91,385.72
6. Step 6: Final answer
   x = 203,342.28