Finding the Third Proportional to 103,690.50 and 154,819.50

Step by Step Solution

1. Step 1: Write the proportion equation
   103,690.50 : 154,819.50 = 154,819.50 : x
2. Step 2: Convert to fraction form
   103,690.50/154,819.50 = 154,819.50/x
3. Step 3: Cross multiply
   103,690.50x = 154,819.50 × 154,819.50
4. Step 4: Simplify right side
   103,690.50x = 23,969,077,580.25
5. Step 5: Solve for x
   x = 23,969,077,580.25/103,690.50
6. Step 6: Final answer
   x = 231,159.82