Finding the Third Proportional to 42,392.81 and 65,611.69

Step by Step Solution

1. Step 1: Write the proportion equation
   42,392.81 : 65,611.69 = 65,611.69 : x
2. Step 2: Convert to fraction form
   42,392.81/65,611.69 = 65,611.69/x
3. Step 3: Cross multiply
   42,392.81x = 65,611.69 × 65,611.69
4. Step 4: Simplify right side
   42,392.81x = 4,304,893,536.60
5. Step 5: Solve for x
   x = 4,304,893,536.60/42,392.81
6. Step 6: Final answer
   x = 101,547.72