Finding the Third Proportional to 64,712 and 141,535

Step by Step Solution

1. Step 1: Write the proportion equation
   64,712 : 141,535 = 141,535 : x
2. Step 2: Convert to fraction form
   64,712/141,535 = 141,535/x
3. Step 3: Cross multiply
   64,712x = 141,535 × 141,535
4. Step 4: Simplify right side
   64,712x = 20,032,156,225
5. Step 5: Solve for x
   x = 20,032,156,225/64,712
6. Step 6: Final answer
   x = 309,558.60