Finding the Third Proportional to 30,427,422 and 67,657,980

Step by Step Solution

1. Step 1: Write the proportion equation
   30,427,422 : 67,657,980 = 67,657,980 : x
2. Step 2: Convert to fraction form
   30,427,422/67,657,980 = 67,657,980/x
3. Step 3: Cross multiply
   30,427,422x = 67,657,980 × 67,657,980
4. Step 4: Simplify right side
   30,427,422x = 4,577,602,257,680,400
5. Step 5: Solve for x
   x = 4,577,602,257,680,400/30,427,422
6. Step 6: Final answer
   x = 150,443,315.82