Finding the Third Proportional to 196,857 and 429,799.50

Step by Step Solution

1. Step 1: Write the proportion equation
   196,857 : 429,799.50 = 429,799.50 : x
2. Step 2: Convert to fraction form
   196,857/429,799.50 = 429,799.50/x
3. Step 3: Cross multiply
   196,857x = 429,799.50 × 429,799.50
4. Step 4: Simplify right side
   196,857x = 184,727,610,200.25
5. Step 5: Solve for x
   x = 184,727,610,200.25/196,857
6. Step 6: Final answer
   x = 938,384.77