Finding the Third Proportional to 386,592.75 and 830,401.88

Step by Step Solution

1. Step 1: Write the proportion equation
   386,592.75 : 830,401.88 = 830,401.88 : x
2. Step 2: Convert to fraction form
   386,592.75/830,401.88 = 830,401.88/x
3. Step 3: Cross multiply
   386,592.75x = 830,401.88 × 830,401.88
4. Step 4: Simplify right side
   386,592.75x = 689,567,274,003.52
5. Step 5: Solve for x
   x = 689,567,274,003.52/386,592.75
6. Step 6: Final answer
   x = 1,783,704.62