Finding the Third Proportional to 87,697.69 and 136,054.69

Step by Step Solution

1. Step 1: Write the proportion equation
   87,697.69 : 136,054.69 = 136,054.69 : x
2. Step 2: Convert to fraction form
   87,697.69/136,054.69 = 136,054.69/x
3. Step 3: Cross multiply
   87,697.69x = 136,054.69 × 136,054.69
4. Step 4: Simplify right side
   87,697.69x = 18,510,877,990.72
5. Step 5: Solve for x
   x = 18,510,877,990.72/87,697.69
6. Step 6: Final answer
   x = 211,076.01