Finding the Third Proportional to 1,402,378 and 3,070,108

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402,378 : 3,070,108 = 3,070,108 : x
2. Step 2: Convert to fraction form
   1,402,378/3,070,108 = 3,070,108/x
3. Step 3: Cross multiply
   1,402,378x = 3,070,108 × 3,070,108
4. Step 4: Simplify right side
   1,402,378x = 9,425,563,131,664
5. Step 5: Solve for x
   x = 9,425,563,131,664/1,402,378
6. Step 6: Final answer
   x = 6,721,128.78