Finding the Third Proportional to 72,636 and 108,997.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,636 : 108,997.50 = 108,997.50 : x
2. Step 2: Convert to fraction form
   72,636/108,997.50 = 108,997.50/x
3. Step 3: Cross multiply
   72,636x = 108,997.50 × 108,997.50
4. Step 4: Simplify right side
   72,636x = 11,880,455,006.25
5. Step 5: Solve for x
   x = 11,880,455,006.25/72,636
6. Step 6: Final answer
   x = 163,561.53