Finding the Third Proportional to 191,602.50 and 290,054.25

Step by Step Solution

1. Step 1: Write the proportion equation
   191,602.50 : 290,054.25 = 290,054.25 : x
2. Step 2: Convert to fraction form
   191,602.50/290,054.25 = 290,054.25/x
3. Step 3: Cross multiply
   191,602.50x = 290,054.25 × 290,054.25
4. Step 4: Simplify right side
   191,602.50x = 84,131,467,943.06
5. Step 5: Solve for x
   x = 84,131,467,943.06/191,602.50
6. Step 6: Final answer
   x = 439,093.79