Finding the Third Proportional to 47,430 and 63,442.50

Step by Step Solution

1. Step 1: Write the proportion equation
   47,430 : 63,442.50 = 63,442.50 : x
2. Step 2: Convert to fraction form
   47,430/63,442.50 = 63,442.50/x
3. Step 3: Cross multiply
   47,430x = 63,442.50 × 63,442.50
4. Step 4: Simplify right side
   47,430x = 4,024,950,806.25
5. Step 5: Solve for x
   x = 4,024,950,806.25/47,430
6. Step 6: Final answer
   x = 84,860.86