Finding the Third Proportional to 423,640.50 and 931,242

Step by Step Solution

1. Step 1: Write the proportion equation
   423,640.50 : 931,242 = 931,242 : x
2. Step 2: Convert to fraction form
   423,640.50/931,242 = 931,242/x
3. Step 3: Cross multiply
   423,640.50x = 931,242 × 931,242
4. Step 4: Simplify right side
   423,640.50x = 867,211,662,564
5. Step 5: Solve for x
   x = 867,211,662,564/423,640.50
6. Step 6: Final answer
   x = 2,047,046.17