Finding the Third Proportional to 7,706,772 and 12,001,284

Step by Step Solution

1. Step 1: Write the proportion equation
   7,706,772 : 12,001,284 = 12,001,284 : x
2. Step 2: Convert to fraction form
   7,706,772/12,001,284 = 12,001,284/x
3. Step 3: Cross multiply
   7,706,772x = 12,001,284 × 12,001,284
4. Step 4: Simplify right side
   7,706,772x = 144,030,817,648,656
5. Step 5: Solve for x
   x = 144,030,817,648,656/7,706,772
6. Step 6: Final answer
   x = 18,688,864.50