Finding the Third Proportional to 4,066,380 and 5,421,235

Step by Step Solution

1. Step 1: Write the proportion equation
   4,066,380 : 5,421,235 = 5,421,235 : x
2. Step 2: Convert to fraction form
   4,066,380/5,421,235 = 5,421,235/x
3. Step 3: Cross multiply
   4,066,380x = 5,421,235 × 5,421,235
4. Step 4: Simplify right side
   4,066,380x = 29,389,788,925,225
5. Step 5: Solve for x
   x = 29,389,788,925,225/4,066,380
6. Step 6: Final answer
   x = 7,227,506.76