Finding the Third Proportional to 72,413 and 107,490.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,413 : 107,490.50 = 107,490.50 : x
2. Step 2: Convert to fraction form
   72,413/107,490.50 = 107,490.50/x
3. Step 3: Cross multiply
   72,413x = 107,490.50 × 107,490.50
4. Step 4: Simplify right side
   72,413x = 11,554,207,590.25
5. Step 5: Solve for x
   x = 11,554,207,590.25/72,413
6. Step 6: Final answer
   x = 159,559.85