Finding the Third Proportional to 17,642,553 and 37,988,419.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,642,553 : 37,988,419.50 = 37,988,419.50 : x
2. Step 2: Convert to fraction form
   17,642,553/37,988,419.50 = 37,988,419.50/x
3. Step 3: Cross multiply
   17,642,553x = 37,988,419.50 × 37,988,419.50
4. Step 4: Simplify right side
   17,642,553x = 1,443,120,016,107,980.25
5. Step 5: Solve for x
   x = 1,443,120,016,107,980.25/17,642,553
6. Step 6: Final answer
   x = 81,797,686.32