Finding the Third Proportional to 31,684,604 and 67,916,588

Step by Step Solution

1. Step 1: Write the proportion equation
   31,684,604 : 67,916,588 = 67,916,588 : x
2. Step 2: Convert to fraction form
   31,684,604/67,916,588 = 67,916,588/x
3. Step 3: Cross multiply
   31,684,604x = 67,916,588 × 67,916,588
4. Step 4: Simplify right side
   31,684,604x = 4,612,662,925,561,744
5. Step 5: Solve for x
   x = 4,612,662,925,561,744/31,684,604
6. Step 6: Final answer
   x = 145,580,576.79