Finding the Third Proportional to 71,971,278 and 156,721,116

Step by Step Solution

1. Step 1: Write the proportion equation
   71,971,278 : 156,721,116 = 156,721,116 : x
2. Step 2: Convert to fraction form
   71,971,278/156,721,116 = 156,721,116/x
3. Step 3: Cross multiply
   71,971,278x = 156,721,116 × 156,721,116
4. Step 4: Simplify right side
   71,971,278x = 24,561,508,200,285,456
5. Step 5: Solve for x
   x = 24,561,508,200,285,456/71,971,278
6. Step 6: Final answer
   x = 341,268,195.91