Finding the Third Proportional to 91,160.63 and 137,998.88

Step by Step Solution

1. Step 1: Write the proportion equation
   91,160.63 : 137,998.88 = 137,998.88 : x
2. Step 2: Convert to fraction form
   91,160.63/137,998.88 = 137,998.88/x
3. Step 3: Cross multiply
   91,160.63x = 137,998.88 × 137,998.88
4. Step 4: Simplify right side
   91,160.63x = 19,043,689,501.27
5. Step 5: Solve for x
   x = 19,043,689,501.27/91,160.63
6. Step 6: Final answer
   x = 208,902.58