Finding the Third Proportional to 1,558,978 and 3,400,076

Step by Step Solution

1. Step 1: Write the proportion equation
   1,558,978 : 3,400,076 = 3,400,076 : x
2. Step 2: Convert to fraction form
   1,558,978/3,400,076 = 3,400,076/x
3. Step 3: Cross multiply
   1,558,978x = 3,400,076 × 3,400,076
4. Step 4: Simplify right side
   1,558,978x = 11,560,516,805,776
5. Step 5: Solve for x
   x = 11,560,516,805,776/1,558,978
6. Step 6: Final answer
   x = 7,415,445.76