Finding the Third Proportional to 72,591.19 and 109,980.28

Step by Step Solution

1. Step 1: Write the proportion equation
   72,591.19 : 109,980.28 = 109,980.28 : x
2. Step 2: Convert to fraction form
   72,591.19/109,980.28 = 109,980.28/x
3. Step 3: Cross multiply
   72,591.19x = 109,980.28 × 109,980.28
4. Step 4: Simplify right side
   72,591.19x = 12,095,662,263.83
5. Step 5: Solve for x
   x = 12,095,662,263.83/72,591.19
6. Step 6: Final answer
   x = 166,627.14