Finding the Third Proportional to 91,051.31 and 137,846.81

Step by Step Solution

1. Step 1: Write the proportion equation
   91,051.31 : 137,846.81 = 137,846.81 : x
2. Step 2: Convert to fraction form
   91,051.31/137,846.81 = 137,846.81/x
3. Step 3: Cross multiply
   91,051.31x = 137,846.81 × 137,846.81
4. Step 4: Simplify right side
   91,051.31x = 19,001,743,716.41
5. Step 5: Solve for x
   x = 19,001,743,716.41/91,051.31
6. Step 6: Final answer
   x = 208,692.69