Finding the Third Proportional to 74,409.75 and 111,784.50

Step by Step Solution

1. Step 1: Write the proportion equation
   74,409.75 : 111,784.50 = 111,784.50 : x
2. Step 2: Convert to fraction form
   74,409.75/111,784.50 = 111,784.50/x
3. Step 3: Cross multiply
   74,409.75x = 111,784.50 × 111,784.50
4. Step 4: Simplify right side
   74,409.75x = 12,495,774,440.25
5. Step 5: Solve for x
   x = 12,495,774,440.25/74,409.75
6. Step 6: Final answer
   x = 167,931.95