Finding the Third Proportional to 118,620 and 186,428.25

Step by Step Solution

1. Step 1: Write the proportion equation
   118,620 : 186,428.25 = 186,428.25 : x
2. Step 2: Convert to fraction form
   118,620/186,428.25 = 186,428.25/x
3. Step 3: Cross multiply
   118,620x = 186,428.25 × 186,428.25
4. Step 4: Simplify right side
   118,620x = 34,755,492,398.06
5. Step 5: Solve for x
   x = 34,755,492,398.06/118,620
6. Step 6: Final answer
   x = 292,998.59