Finding the Third Proportional to 8,343,312 and 12,898,008

Step by Step Solution

1. Step 1: Write the proportion equation
   8,343,312 : 12,898,008 = 12,898,008 : x
2. Step 2: Convert to fraction form
   8,343,312/12,898,008 = 12,898,008/x
3. Step 3: Cross multiply
   8,343,312x = 12,898,008 × 12,898,008
4. Step 4: Simplify right side
   8,343,312x = 166,358,610,368,064
5. Step 5: Solve for x
   x = 166,358,610,368,064/8,343,312
6. Step 6: Final answer
   x = 19,939,157.30