Finding the Third Proportional to 117,205,792 and 172,300,736

Step by Step Solution

1. Step 1: Write the proportion equation
   117,205,792 : 172,300,736 = 172,300,736 : x
2. Step 2: Convert to fraction form
   117,205,792/172,300,736 = 172,300,736/x
3. Step 3: Cross multiply
   117,205,792x = 172,300,736 × 172,300,736
4. Step 4: Simplify right side
   117,205,792x = 29,687,543,626,141,696
5. Step 5: Solve for x
   x = 29,687,543,626,141,696/117,205,792
6. Step 6: Final answer
   x = 253,294,168.48