Finding the Third Proportional to 191,729 and 403,289.50

Step by Step Solution

1. Step 1: Write the proportion equation
   191,729 : 403,289.50 = 403,289.50 : x
2. Step 2: Convert to fraction form
   191,729/403,289.50 = 403,289.50/x
3. Step 3: Cross multiply
   191,729x = 403,289.50 × 403,289.50
4. Step 4: Simplify right side
   191,729x = 162,642,420,810.25
5. Step 5: Solve for x
   x = 162,642,420,810.25/191,729
6. Step 6: Final answer
   x = 848,293.27