Finding the Third Proportional to 191,574 and 290,020.50

Step by Step Solution

1. Step 1: Write the proportion equation
   191,574 : 290,020.50 = 290,020.50 : x
2. Step 2: Convert to fraction form
   191,574/290,020.50 = 290,020.50/x
3. Step 3: Cross multiply
   191,574x = 290,020.50 × 290,020.50
4. Step 4: Simplify right side
   191,574x = 84,111,890,420.25
5. Step 5: Solve for x
   x = 84,111,890,420.25/191,574
6. Step 6: Final answer
   x = 439,056.92