Finding the Third Proportional to 14,287,312 and 31,349,311

Step by Step Solution

1. Step 1: Write the proportion equation
   14,287,312 : 31,349,311 = 31,349,311 : x
2. Step 2: Convert to fraction form
   14,287,312/31,349,311 = 31,349,311/x
3. Step 3: Cross multiply
   14,287,312x = 31,349,311 × 31,349,311
4. Step 4: Simplify right side
   14,287,312x = 982,779,300,174,721
5. Step 5: Solve for x
   x = 982,779,300,174,721/14,287,312
6. Step 6: Final answer
   x = 68,786,857.89