Finding the Third Proportional to 88,698 and 191,611.50

Step by Step Solution

1. Step 1: Write the proportion equation
   88,698 : 191,611.50 = 191,611.50 : x
2. Step 2: Convert to fraction form
   88,698/191,611.50 = 191,611.50/x
3. Step 3: Cross multiply
   88,698x = 191,611.50 × 191,611.50
4. Step 4: Simplify right side
   88,698x = 36,714,966,932.25
5. Step 5: Solve for x
   x = 36,714,966,932.25/88,698
6. Step 6: Final answer
   x = 413,932.30