Finding the Third Proportional to 365,016.38 and 780,475.50

Step by Step Solution

1. Step 1: Write the proportion equation
   365,016.38 : 780,475.50 = 780,475.50 : x
2. Step 2: Convert to fraction form
   365,016.38/780,475.50 = 780,475.50/x
3. Step 3: Cross multiply
   365,016.38x = 780,475.50 × 780,475.50
4. Step 4: Simplify right side
   365,016.38x = 609,142,006,100.25
5. Step 5: Solve for x
   x = 609,142,006,100.25/365,016.38
6. Step 6: Final answer
   x = 1,668,807.34