Finding the Third Proportional to 13,201,788 and 21,006,640.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,201,788 : 21,006,640.50 = 21,006,640.50 : x
2. Step 2: Convert to fraction form
   13,201,788/21,006,640.50 = 21,006,640.50/x
3. Step 3: Cross multiply
   13,201,788x = 21,006,640.50 × 21,006,640.50
4. Step 4: Simplify right side
   13,201,788x = 441,278,945,096,240.25
5. Step 5: Solve for x
   x = 441,278,945,096,240.25/13,201,788
6. Step 6: Final answer
   x = 33,425,695.45