Finding the Third Proportional to 377,373.94 and 821,178

Step by Step Solution

1. Step 1: Write the proportion equation
   377,373.94 : 821,178 = 821,178 : x
2. Step 2: Convert to fraction form
   377,373.94/821,178 = 821,178/x
3. Step 3: Cross multiply
   377,373.94x = 821,178 × 821,178
4. Step 4: Simplify right side
   377,373.94x = 674,333,307,684
5. Step 5: Solve for x
   x = 674,333,307,684/377,373.94
6. Step 6: Final answer
   x = 1,786,910.12