Finding the Third Proportional to 191,559 and 290,005.50

Step by Step Solution

1. Step 1: Write the proportion equation
   191,559 : 290,005.50 = 290,005.50 : x
2. Step 2: Convert to fraction form
   191,559/290,005.50 = 290,005.50/x
3. Step 3: Cross multiply
   191,559x = 290,005.50 × 290,005.50
4. Step 4: Simplify right side
   191,559x = 84,103,190,030.25
5. Step 5: Solve for x
   x = 84,103,190,030.25/191,559
6. Step 6: Final answer
   x = 439,045.88