Finding the Third Proportional to 191,669 and 418,147.50

Step by Step Solution

1. Step 1: Write the proportion equation
   191,669 : 418,147.50 = 418,147.50 : x
2. Step 2: Convert to fraction form
   191,669/418,147.50 = 418,147.50/x
3. Step 3: Cross multiply
   191,669x = 418,147.50 × 418,147.50
4. Step 4: Simplify right side
   191,669x = 174,847,331,756.25
5. Step 5: Solve for x
   x = 174,847,331,756.25/191,669
6. Step 6: Final answer
   x = 912,235.84