Finding the Third Proportional to 21,089,421 and 33,756,799.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,089,421 : 33,756,799.50 = 33,756,799.50 : x
2. Step 2: Convert to fraction form
   21,089,421/33,756,799.50 = 33,756,799.50/x
3. Step 3: Cross multiply
   21,089,421x = 33,756,799.50 × 33,756,799.50
4. Step 4: Simplify right side
   21,089,421x = 1,139,521,512,483,200.25
5. Step 5: Solve for x
   x = 1,139,521,512,483,200.25/21,089,421
6. Step 6: Final answer
   x = 54,032,849.57