Finding the Third Proportional to 178,434 and 371,668.50

Step by Step Solution

1. Step 1: Write the proportion equation
   178,434 : 371,668.50 = 371,668.50 : x
2. Step 2: Convert to fraction form
   178,434/371,668.50 = 371,668.50/x
3. Step 3: Cross multiply
   178,434x = 371,668.50 × 371,668.50
4. Step 4: Simplify right side
   178,434x = 138,137,473,892.25
5. Step 5: Solve for x
   x = 138,137,473,892.25/178,434
6. Step 6: Final answer
   x = 774,165.65