Finding the Third Proportional to 100,356 and 137,611.50

Step by Step Solution

1. Step 1: Write the proportion equation
   100,356 : 137,611.50 = 137,611.50 : x
2. Step 2: Convert to fraction form
   100,356/137,611.50 = 137,611.50/x
3. Step 3: Cross multiply
   100,356x = 137,611.50 × 137,611.50
4. Step 4: Simplify right side
   100,356x = 18,936,924,932.25
5. Step 5: Solve for x
   x = 18,936,924,932.25/100,356
6. Step 6: Final answer
   x = 188,697.49