Finding the Third Proportional to 196,875 and 429,840

Step by Step Solution

1. Step 1: Write the proportion equation
   196,875 : 429,840 = 429,840 : x
2. Step 2: Convert to fraction form
   196,875/429,840 = 429,840/x
3. Step 3: Cross multiply
   196,875x = 429,840 × 429,840
4. Step 4: Simplify right side
   196,875x = 184,762,425,600
5. Step 5: Solve for x
   x = 184,762,425,600/196,875
6. Step 6: Final answer
   x = 938,475.81