Finding the Third Proportional to 1,635,991.50 and 3,499,431

Step by Step Solution

1. Step 1: Write the proportion equation
   1,635,991.50 : 3,499,431 = 3,499,431 : x
2. Step 2: Convert to fraction form
   1,635,991.50/3,499,431 = 3,499,431/x
3. Step 3: Cross multiply
   1,635,991.50x = 3,499,431 × 3,499,431
4. Step 4: Simplify right side
   1,635,991.50x = 12,246,017,323,761
5. Step 5: Solve for x
   x = 12,246,017,323,761/1,635,991.50
6. Step 6: Final answer
   x = 7,485,379.55