Finding the Third Proportional to 4,230,916 and 9,301,640

Step by Step Solution

1. Step 1: Write the proportion equation
   4,230,916 : 9,301,640 = 9,301,640 : x
2. Step 2: Convert to fraction form
   4,230,916/9,301,640 = 9,301,640/x
3. Step 3: Cross multiply
   4,230,916x = 9,301,640 × 9,301,640
4. Step 4: Simplify right side
   4,230,916x = 86,520,506,689,600
5. Step 5: Solve for x
   x = 86,520,506,689,600/4,230,916
6. Step 6: Final answer
   x = 20,449,592.17