Finding the Third Proportional to 74,991 and 108,976.50

Step by Step Solution

1. Step 1: Write the proportion equation
   74,991 : 108,976.50 = 108,976.50 : x
2. Step 2: Convert to fraction form
   74,991/108,976.50 = 108,976.50/x
3. Step 3: Cross multiply
   74,991x = 108,976.50 × 108,976.50
4. Step 4: Simplify right side
   74,991x = 11,875,877,552.25
5. Step 5: Solve for x
   x = 11,875,877,552.25/74,991
6. Step 6: Final answer
   x = 158,364.04