Finding the Third Proportional to 290,926 and 454,068.50

Step by Step Solution

1. Step 1: Write the proportion equation
   290,926 : 454,068.50 = 454,068.50 : x
2. Step 2: Convert to fraction form
   290,926/454,068.50 = 454,068.50/x
3. Step 3: Cross multiply
   290,926x = 454,068.50 × 454,068.50
4. Step 4: Simplify right side
   290,926x = 206,178,202,692.25
5. Step 5: Solve for x
   x = 206,178,202,692.25/290,926
6. Step 6: Final answer
   x = 708,696.38