Finding the Third Proportional to 61,996.50 and 90,841.50

Step by Step Solution

1. Step 1: Write the proportion equation
   61,996.50 : 90,841.50 = 90,841.50 : x
2. Step 2: Convert to fraction form
   61,996.50/90,841.50 = 90,841.50/x
3. Step 3: Cross multiply
   61,996.50x = 90,841.50 × 90,841.50
4. Step 4: Simplify right side
   61,996.50x = 8,252,178,122.25
5. Step 5: Solve for x
   x = 8,252,178,122.25/61,996.50
6. Step 6: Final answer
   x = 133,107.16