Finding the Third Proportional to 355,404.75 and 777,237

Step by Step Solution

1. Step 1: Write the proportion equation
   355,404.75 : 777,237 = 777,237 : x
2. Step 2: Convert to fraction form
   355,404.75/777,237 = 777,237/x
3. Step 3: Cross multiply
   355,404.75x = 777,237 × 777,237
4. Step 4: Simplify right side
   355,404.75x = 604,097,354,169
5. Step 5: Solve for x
   x = 604,097,354,169/355,404.75
6. Step 6: Final answer
   x = 1,699,744.74