Finding the Third Proportional to 190,620 and 414,436.50

Step by Step Solution

1. Step 1: Write the proportion equation
   190,620 : 414,436.50 = 414,436.50 : x
2. Step 2: Convert to fraction form
   190,620/414,436.50 = 414,436.50/x
3. Step 3: Cross multiply
   190,620x = 414,436.50 × 414,436.50
4. Step 4: Simplify right side
   190,620x = 171,757,612,532.25
5. Step 5: Solve for x
   x = 171,757,612,532.25/190,620
6. Step 6: Final answer
   x = 901,047.18