Finding the Third Proportional to 42,087,229 and 90,440,217

Step by Step Solution

1. Step 1: Write the proportion equation
   42,087,229 : 90,440,217 = 90,440,217 : x
2. Step 2: Convert to fraction form
   42,087,229/90,440,217 = 90,440,217/x
3. Step 3: Cross multiply
   42,087,229x = 90,440,217 × 90,440,217
4. Step 4: Simplify right side
   42,087,229x = 8,179,432,851,007,089
5. Step 5: Solve for x
   x = 8,179,432,851,007,089/42,087,229
6. Step 6: Final answer
   x = 194,344,770.26