Finding the Third Proportional to 191,608.88 and 290,066.06

Step by Step Solution

1. Step 1: Write the proportion equation
   191,608.88 : 290,066.06 = 290,066.06 : x
2. Step 2: Convert to fraction form
   191,608.88/290,066.06 = 290,066.06/x
3. Step 3: Cross multiply
   191,608.88x = 290,066.06 × 290,066.06
4. Step 4: Simplify right side
   191,608.88x = 84,138,320,614.25
5. Step 5: Solve for x
   x = 84,138,320,614.25/191,608.88
6. Step 6: Final answer
   x = 439,114.95