Finding the Third Proportional to 68,484 and 149,428.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,484 : 149,428.50 = 149,428.50 : x
2. Step 2: Convert to fraction form
   68,484/149,428.50 = 149,428.50/x
3. Step 3: Cross multiply
   68,484x = 149,428.50 × 149,428.50
4. Step 4: Simplify right side
   68,484x = 22,328,876,612.25
5. Step 5: Solve for x
   x = 22,328,876,612.25/68,484
6. Step 6: Final answer
   x = 326,045.16