Finding the Third Proportional to 42,838.88 and 66,992.06

Step by Step Solution

1. Step 1: Write the proportion equation
   42,838.88 : 66,992.06 = 66,992.06 : x
2. Step 2: Convert to fraction form
   42,838.88/66,992.06 = 66,992.06/x
3. Step 3: Cross multiply
   42,838.88x = 66,992.06 × 66,992.06
4. Step 4: Simplify right side
   42,838.88x = 4,487,936,438.00
5. Step 5: Solve for x
   x = 4,487,936,438.00/42,838.88
6. Step 6: Final answer
   x = 104,763.17