Finding the Third Proportional to 34,878,770 and 81,466,662

Step by Step Solution

1. Step 1: Write the proportion equation
   34,878,770 : 81,466,662 = 81,466,662 : x
2. Step 2: Convert to fraction form
   34,878,770/81,466,662 = 81,466,662/x
3. Step 3: Cross multiply
   34,878,770x = 81,466,662 × 81,466,662
4. Step 4: Simplify right side
   34,878,770x = 6,636,817,017,422,244
5. Step 5: Solve for x
   x = 6,636,817,017,422,244/34,878,770
6. Step 6: Final answer
   x = 190,282,427.32