Finding the Third Proportional to 418,532 and 915,308

Step by Step Solution

1. Step 1: Write the proportion equation
   418,532 : 915,308 = 915,308 : x
2. Step 2: Convert to fraction form
   418,532/915,308 = 915,308/x
3. Step 3: Cross multiply
   418,532x = 915,308 × 915,308
4. Step 4: Simplify right side
   418,532x = 837,788,734,864
5. Step 5: Solve for x
   x = 837,788,734,864/418,532
6. Step 6: Final answer
   x = 2,001,731.61