Finding the Third Proportional to 121,364.50 and 188,437

Step by Step Solution

1. Step 1: Write the proportion equation
   121,364.50 : 188,437 = 188,437 : x
2. Step 2: Convert to fraction form
   121,364.50/188,437 = 188,437/x
3. Step 3: Cross multiply
   121,364.50x = 188,437 × 188,437
4. Step 4: Simplify right side
   121,364.50x = 35,508,502,969
5. Step 5: Solve for x
   x = 35,508,502,969/121,364.50
6. Step 6: Final answer
   x = 292,577.34