Finding the Third Proportional to 128,818.50 and 194,637

Step by Step Solution

1. Step 1: Write the proportion equation
   128,818.50 : 194,637 = 194,637 : x
2. Step 2: Convert to fraction form
   128,818.50/194,637 = 194,637/x
3. Step 3: Cross multiply
   128,818.50x = 194,637 × 194,637
4. Step 4: Simplify right side
   128,818.50x = 37,883,561,769
5. Step 5: Solve for x
   x = 37,883,561,769/128,818.50
6. Step 6: Final answer
   x = 294,084.79