Finding the Third Proportional to 72,799 and 149,126.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,799 : 149,126.50 = 149,126.50 : x
2. Step 2: Convert to fraction form
   72,799/149,126.50 = 149,126.50/x
3. Step 3: Cross multiply
   72,799x = 149,126.50 × 149,126.50
4. Step 4: Simplify right side
   72,799x = 22,238,713,002.25
5. Step 5: Solve for x
   x = 22,238,713,002.25/72,799
6. Step 6: Final answer
   x = 305,481.02