Finding the Third Proportional to 10,200,888 and 21,553,159

Step by Step Solution

1. Step 1: Write the proportion equation
   10,200,888 : 21,553,159 = 21,553,159 : x
2. Step 2: Convert to fraction form
   10,200,888/21,553,159 = 21,553,159/x
3. Step 3: Cross multiply
   10,200,888x = 21,553,159 × 21,553,159
4. Step 4: Simplify right side
   10,200,888x = 464,538,662,879,281
5. Step 5: Solve for x
   x = 464,538,662,879,281/10,200,888
6. Step 6: Final answer
   x = 45,539,041.59