Finding the Third Proportional to 191,354 and 417,152

Step by Step Solution

1. Step 1: Write the proportion equation
   191,354 : 417,152 = 417,152 : x
2. Step 2: Convert to fraction form
   191,354/417,152 = 417,152/x
3. Step 3: Cross multiply
   191,354x = 417,152 × 417,152
4. Step 4: Simplify right side
   191,354x = 174,015,791,104
5. Step 5: Solve for x
   x = 174,015,791,104/191,354
6. Step 6: Final answer
   x = 909,391.97