Finding the Third Proportional to 72,921 and 114,244.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,921 : 114,244.50 = 114,244.50 : x
2. Step 2: Convert to fraction form
   72,921/114,244.50 = 114,244.50/x
3. Step 3: Cross multiply
   72,921x = 114,244.50 × 114,244.50
4. Step 4: Simplify right side
   72,921x = 13,051,805,780.25
5. Step 5: Solve for x
   x = 13,051,805,780.25/72,921
6. Step 6: Final answer
   x = 178,985.56