Finding the Third Proportional to 8,509,650 and 12,773,181

Step by Step Solution

1. Step 1: Write the proportion equation
   8,509,650 : 12,773,181 = 12,773,181 : x
2. Step 2: Convert to fraction form
   8,509,650/12,773,181 = 12,773,181/x
3. Step 3: Cross multiply
   8,509,650x = 12,773,181 × 12,773,181
4. Step 4: Simplify right side
   8,509,650x = 163,154,152,858,761
5. Step 5: Solve for x
   x = 163,154,152,858,761/8,509,650
6. Step 6: Final answer
   x = 19,172,839.41