Finding the Third Proportional to 13,686,596 and 21,185,070

Step by Step Solution

1. Step 1: Write the proportion equation
   13,686,596 : 21,185,070 = 21,185,070 : x
2. Step 2: Convert to fraction form
   13,686,596/21,185,070 = 21,185,070/x
3. Step 3: Cross multiply
   13,686,596x = 21,185,070 × 21,185,070
4. Step 4: Simplify right side
   13,686,596x = 448,807,190,904,900
5. Step 5: Solve for x
   x = 448,807,190,904,900/13,686,596
6. Step 6: Final answer
   x = 32,791,732.21