Finding the Third Proportional to 428,740 and 931,264

Step by Step Solution

1. Step 1: Write the proportion equation
   428,740 : 931,264 = 931,264 : x
2. Step 2: Convert to fraction form
   428,740/931,264 = 931,264/x
3. Step 3: Cross multiply
   428,740x = 931,264 × 931,264
4. Step 4: Simplify right side
   428,740x = 867,252,637,696
5. Step 5: Solve for x
   x = 867,252,637,696/428,740
6. Step 6: Final answer
   x = 2,022,793.86