Finding the Third Proportional to 194,787 and 279,031.50

Step by Step Solution

1. Step 1: Write the proportion equation
   194,787 : 279,031.50 = 279,031.50 : x
2. Step 2: Convert to fraction form
   194,787/279,031.50 = 279,031.50/x
3. Step 3: Cross multiply
   194,787x = 279,031.50 × 279,031.50
4. Step 4: Simplify right side
   194,787x = 77,858,577,992.25
5. Step 5: Solve for x
   x = 77,858,577,992.25/194,787
6. Step 6: Final answer
   x = 399,711.37