Finding the Third Proportional to 91,351,851 and 215,581,085.25

Step by Step Solution

1. Step 1: Write the proportion equation
   91,351,851 : 215,581,085.25 = 215,581,085.25 : x
2. Step 2: Convert to fraction form
   91,351,851/215,581,085.25 = 215,581,085.25/x
3. Step 3: Cross multiply
   91,351,851x = 215,581,085.25 × 215,581,085.25
4. Step 4: Simplify right side
   91,351,851x = 46,475,204,317,567,768
5. Step 5: Solve for x
   x = 46,475,204,317,567,768/91,351,851
6. Step 6: Final answer
   x = 508,749,453.99