Finding the Third Proportional to 422,112 and 632,434.50

Step by Step Solution

1. Step 1: Write the proportion equation
   422,112 : 632,434.50 = 632,434.50 : x
2. Step 2: Convert to fraction form
   422,112/632,434.50 = 632,434.50/x
3. Step 3: Cross multiply
   422,112x = 632,434.50 × 632,434.50
4. Step 4: Simplify right side
   422,112x = 399,973,396,790.25
5. Step 5: Solve for x
   x = 399,973,396,790.25/422,112
6. Step 6: Final answer
   x = 947,552.77