Finding the Third Proportional to 377,865 and 570,442.50

Step by Step Solution

1. Step 1: Write the proportion equation
   377,865 : 570,442.50 = 570,442.50 : x
2. Step 2: Convert to fraction form
   377,865/570,442.50 = 570,442.50/x
3. Step 3: Cross multiply
   377,865x = 570,442.50 × 570,442.50
4. Step 4: Simplify right side
   377,865x = 325,404,645,806.25
5. Step 5: Solve for x
   x = 325,404,645,806.25/377,865
6. Step 6: Final answer
   x = 861,166.41