Finding the Third Proportional to 191,710 and 403,250

Step by Step Solution

1. Step 1: Write the proportion equation
   191,710 : 403,250 = 403,250 : x
2. Step 2: Convert to fraction form
   191,710/403,250 = 403,250/x
3. Step 3: Cross multiply
   191,710x = 403,250 × 403,250
4. Step 4: Simplify right side
   191,710x = 162,610,562,500
5. Step 5: Solve for x
   x = 162,610,562,500/191,710
6. Step 6: Final answer
   x = 848,211.17