Finding the Third Proportional to 191,718 and 403,267.50

Step by Step Solution

1. Step 1: Write the proportion equation
   191,718 : 403,267.50 = 403,267.50 : x
2. Step 2: Convert to fraction form
   191,718/403,267.50 = 403,267.50/x
3. Step 3: Cross multiply
   191,718x = 403,267.50 × 403,267.50
4. Step 4: Simplify right side
   191,718x = 162,624,676,556.25
5. Step 5: Solve for x
   x = 162,624,676,556.25/191,718
6. Step 6: Final answer
   x = 848,249.39