Finding the Third Proportional to 1,590,480 and 3,418,272

Step by Step Solution

1. Step 1: Write the proportion equation
   1,590,480 : 3,418,272 = 3,418,272 : x
2. Step 2: Convert to fraction form
   1,590,480/3,418,272 = 3,418,272/x
3. Step 3: Cross multiply
   1,590,480x = 3,418,272 × 3,418,272
4. Step 4: Simplify right side
   1,590,480x = 11,684,583,465,984
5. Step 5: Solve for x
   x = 11,684,583,465,984/1,590,480
6. Step 6: Final answer
   x = 7,346,576.80