Finding the Third Proportional to 136,908 and 294,054.75

Step by Step Solution

1. Step 1: Write the proportion equation
   136,908 : 294,054.75 = 294,054.75 : x
2. Step 2: Convert to fraction form
   136,908/294,054.75 = 294,054.75/x
3. Step 3: Cross multiply
   136,908x = 294,054.75 × 294,054.75
4. Step 4: Simplify right side
   136,908x = 86,468,195,997.56
5. Step 5: Solve for x
   x = 86,468,195,997.56/136,908
6. Step 6: Final answer
   x = 631,578.84