Finding the Third Proportional to 191,808 and 290,377.50

Step by Step Solution

1. Step 1: Write the proportion equation
   191,808 : 290,377.50 = 290,377.50 : x
2. Step 2: Convert to fraction form
   191,808/290,377.50 = 290,377.50/x
3. Step 3: Cross multiply
   191,808x = 290,377.50 × 290,377.50
4. Step 4: Simplify right side
   191,808x = 84,319,092,506.25
5. Step 5: Solve for x
   x = 84,319,092,506.25/191,808
6. Step 6: Final answer
   x = 439,601.54