Finding the Third Proportional to 422,118 and 632,443.50

Step by Step Solution

1. Step 1: Write the proportion equation
   422,118 : 632,443.50 = 632,443.50 : x
2. Step 2: Convert to fraction form
   422,118/632,443.50 = 632,443.50/x
3. Step 3: Cross multiply
   422,118x = 632,443.50 × 632,443.50
4. Step 4: Simplify right side
   422,118x = 399,984,780,692.25
5. Step 5: Solve for x
   x = 399,984,780,692.25/422,118
6. Step 6: Final answer
   x = 947,566.27