Finding the Third Proportional to 65,643,051 and 142,845,126

Step by Step Solution

1. Step 1: Write the proportion equation
   65,643,051 : 142,845,126 = 142,845,126 : x
2. Step 2: Convert to fraction form
   65,643,051/142,845,126 = 142,845,126/x
3. Step 3: Cross multiply
   65,643,051x = 142,845,126 × 142,845,126
4. Step 4: Simplify right side
   65,643,051x = 20,404,730,021,955,876
5. Step 5: Solve for x
   x = 20,404,730,021,955,876/65,643,051
6. Step 6: Final answer
   x = 310,843,717.82