Finding the Third Proportional to 21,263,547 and 31,888,408.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,263,547 : 31,888,408.50 = 31,888,408.50 : x
2. Step 2: Convert to fraction form
   21,263,547/31,888,408.50 = 31,888,408.50/x
3. Step 3: Cross multiply
   21,263,547x = 31,888,408.50 × 31,888,408.50
4. Step 4: Simplify right side
   21,263,547x = 1,016,870,596,662,872.25
5. Step 5: Solve for x
   x = 1,016,870,596,662,872.25/21,263,547
6. Step 6: Final answer
   x = 47,822,247.00