Finding the Third Proportional to 365,022 and 780,484.50

Step by Step Solution

1. Step 1: Write the proportion equation
   365,022 : 780,484.50 = 780,484.50 : x
2. Step 2: Convert to fraction form
   365,022/780,484.50 = 780,484.50/x
3. Step 3: Cross multiply
   365,022x = 780,484.50 × 780,484.50
4. Step 4: Simplify right side
   365,022x = 609,156,054,740.25
5. Step 5: Solve for x
   x = 609,156,054,740.25/365,022
6. Step 6: Final answer
   x = 1,668,820.11