Finding the Third Proportional to 34,145.93 and 69,646.71

Step by Step Solution

1. Step 1: Write the proportion equation
   34,145.93 : 69,646.71 = 69,646.71 : x
2. Step 2: Convert to fraction form
   34,145.93/69,646.71 = 69,646.71/x
3. Step 3: Cross multiply
   34,145.93x = 69,646.71 × 69,646.71
4. Step 4: Simplify right side
   34,145.93x = 4,850,664,344.41
5. Step 5: Solve for x
   x = 4,850,664,344.41/34,145.93
6. Step 6: Final answer
   x = 142,056.88