Finding the Third Proportional to 9,112,916 and 12,818,445

Step by Step Solution

1. Step 1: Write the proportion equation
   9,112,916 : 12,818,445 = 12,818,445 : x
2. Step 2: Convert to fraction form
   9,112,916/12,818,445 = 12,818,445/x
3. Step 3: Cross multiply
   9,112,916x = 12,818,445 × 12,818,445
4. Step 4: Simplify right side
   9,112,916x = 164,312,532,218,025
5. Step 5: Solve for x
   x = 164,312,532,218,025/9,112,916
6. Step 6: Final answer
   x = 18,030,730.47