Finding the Third Proportional to 211,194 and 429,724.50

Step by Step Solution

1. Step 1: Write the proportion equation
   211,194 : 429,724.50 = 429,724.50 : x
2. Step 2: Convert to fraction form
   211,194/429,724.50 = 429,724.50/x
3. Step 3: Cross multiply
   211,194x = 429,724.50 × 429,724.50
4. Step 4: Simplify right side
   211,194x = 184,663,145,900.25
5. Step 5: Solve for x
   x = 184,663,145,900.25/211,194
6. Step 6: Final answer
   x = 874,376.86