Finding the Third Proportional to 42,784.88 and 66,409.88

Step by Step Solution

1. Step 1: Write the proportion equation
   42,784.88 : 66,409.88 = 66,409.88 : x
2. Step 2: Convert to fraction form
   42,784.88/66,409.88 = 66,409.88/x
3. Step 3: Cross multiply
   42,784.88x = 66,409.88 × 66,409.88
4. Step 4: Simplify right side
   42,784.88x = 4,410,271,497.52
5. Step 5: Solve for x
   x = 4,410,271,497.52/42,784.88
6. Step 6: Final answer
   x = 103,080.15