Finding the Third Proportional to 21,009,852 and 31,514,773.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,009,852 : 31,514,773.50 = 31,514,773.50 : x
2. Step 2: Convert to fraction form
   21,009,852/31,514,773.50 = 31,514,773.50/x
3. Step 3: Cross multiply
   21,009,852x = 31,514,773.50 × 31,514,773.50
4. Step 4: Simplify right side
   21,009,852x = 993,180,948,756,302.25
5. Step 5: Solve for x
   x = 993,180,948,756,302.25/21,009,852
6. Step 6: Final answer
   x = 47,272,153.50