Finding the Third Proportional to 428,562 and 634,095

Step by Step Solution

1. Step 1: Write the proportion equation
   428,562 : 634,095 = 634,095 : x
2. Step 2: Convert to fraction form
   428,562/634,095 = 634,095/x
3. Step 3: Cross multiply
   428,562x = 634,095 × 634,095
4. Step 4: Simplify right side
   428,562x = 402,076,469,025
5. Step 5: Solve for x
   x = 402,076,469,025/428,562
6. Step 6: Final answer
   x = 938,199.07