Finding the Third Proportional to 291,559.50 and 476,091

Step by Step Solution

1. Step 1: Write the proportion equation
   291,559.50 : 476,091 = 476,091 : x
2. Step 2: Convert to fraction form
   291,559.50/476,091 = 476,091/x
3. Step 3: Cross multiply
   291,559.50x = 476,091 × 476,091
4. Step 4: Simplify right side
   291,559.50x = 226,662,640,281
5. Step 5: Solve for x
   x = 226,662,640,281/291,559.50
6. Step 6: Final answer
   x = 777,414.70