Finding the Third Proportional to 190,971 and 420,079.50

Step by Step Solution

1. Step 1: Write the proportion equation
   190,971 : 420,079.50 = 420,079.50 : x
2. Step 2: Convert to fraction form
   190,971/420,079.50 = 420,079.50/x
3. Step 3: Cross multiply
   190,971x = 420,079.50 × 420,079.50
4. Step 4: Simplify right side
   190,971x = 176,466,786,320.25
5. Step 5: Solve for x
   x = 176,466,786,320.25/190,971
6. Step 6: Final answer
   x = 924,050.18