Finding the Third Proportional to 71,963,780 and 111,308,646

Step by Step Solution

1. Step 1: Write the proportion equation
   71,963,780 : 111,308,646 = 111,308,646 : x
2. Step 2: Convert to fraction form
   71,963,780/111,308,646 = 111,308,646/x
3. Step 3: Cross multiply
   71,963,780x = 111,308,646 × 111,308,646
4. Step 4: Simplify right side
   71,963,780x = 12,389,614,674,353,316
5. Step 5: Solve for x
   x = 12,389,614,674,353,316/71,963,780
6. Step 6: Final answer
   x = 172,164,589.94