Finding the Third Proportional to 191,647 and 403,152

Step by Step Solution

1. Step 1: Write the proportion equation
   191,647 : 403,152 = 403,152 : x
2. Step 2: Convert to fraction form
   191,647/403,152 = 403,152/x
3. Step 3: Cross multiply
   191,647x = 403,152 × 403,152
4. Step 4: Simplify right side
   191,647x = 162,531,535,104
5. Step 5: Solve for x
   x = 162,531,535,104/191,647
6. Step 6: Final answer
   x = 848,077.64