Finding the Third Proportional to 17,911,507 and 38,864,036

Step by Step Solution

1. Step 1: Write the proportion equation
   17,911,507 : 38,864,036 = 38,864,036 : x
2. Step 2: Convert to fraction form
   17,911,507/38,864,036 = 38,864,036/x
3. Step 3: Cross multiply
   17,911,507x = 38,864,036 × 38,864,036
4. Step 4: Simplify right side
   17,911,507x = 1,510,413,294,209,296
5. Step 5: Solve for x
   x = 1,510,413,294,209,296/17,911,507
6. Step 6: Final answer
   x = 84,326,421.79