Finding the Third Proportional to 429,492 and 915,860

Step by Step Solution

1. Step 1: Write the proportion equation
   429,492 : 915,860 = 915,860 : x
2. Step 2: Convert to fraction form
   429,492/915,860 = 915,860/x
3. Step 3: Cross multiply
   429,492x = 915,860 × 915,860
4. Step 4: Simplify right side
   429,492x = 838,799,539,600
5. Step 5: Solve for x
   x = 838,799,539,600/429,492
6. Step 6: Final answer
   x = 1,953,003.87