Finding the Third Proportional to 5,186,654 and 7,851,585

Step by Step Solution

1. Step 1: Write the proportion equation
   5,186,654 : 7,851,585 = 7,851,585 : x
2. Step 2: Convert to fraction form
   5,186,654/7,851,585 = 7,851,585/x
3. Step 3: Cross multiply
   5,186,654x = 7,851,585 × 7,851,585
4. Step 4: Simplify right side
   5,186,654x = 61,647,387,012,225
5. Step 5: Solve for x
   x = 61,647,387,012,225/5,186,654
6. Step 6: Final answer
   x = 11,885,772.02