Finding the Third Proportional to 35,156,989 and 77,121,290

Step by Step Solution

1. Step 1: Write the proportion equation
   35,156,989 : 77,121,290 = 77,121,290 : x
2. Step 2: Convert to fraction form
   35,156,989/77,121,290 = 77,121,290/x
3. Step 3: Cross multiply
   35,156,989x = 77,121,290 × 77,121,290
4. Step 4: Simplify right side
   35,156,989x = 5,947,693,371,264,100
5. Step 5: Solve for x
   x = 5,947,693,371,264,100/35,156,989
6. Step 6: Final answer
   x = 169,175,277.53