Finding the Third Proportional to 3,407,128 and 7,505,590

Step by Step Solution

1. Step 1: Write the proportion equation
   3,407,128 : 7,505,590 = 7,505,590 : x
2. Step 2: Convert to fraction form
   3,407,128/7,505,590 = 7,505,590/x
3. Step 3: Cross multiply
   3,407,128x = 7,505,590 × 7,505,590
4. Step 4: Simplify right side
   3,407,128x = 56,333,881,248,100
5. Step 5: Solve for x
   x = 56,333,881,248,100/3,407,128
6. Step 6: Final answer
   x = 16,534,125.29