Finding the Third Proportional to 91,537.88 and 198,300.38

Step by Step Solution

1. Step 1: Write the proportion equation
   91,537.88 : 198,300.38 = 198,300.38 : x
2. Step 2: Convert to fraction form
   91,537.88/198,300.38 = 198,300.38/x
3. Step 3: Cross multiply
   91,537.88x = 198,300.38 × 198,300.38
4. Step 4: Simplify right side
   91,537.88x = 39,323,038,725.14
5. Step 5: Solve for x
   x = 39,323,038,725.14/91,537.88
6. Step 6: Final answer
   x = 429,582.17