Finding the Third Proportional to 31,985,527.50 and 69,077,578.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,985,527.50 : 69,077,578.50 = 69,077,578.50 : x
2. Step 2: Convert to fraction form
   31,985,527.50/69,077,578.50 = 69,077,578.50/x
3. Step 3: Cross multiply
   31,985,527.50x = 69,077,578.50 × 69,077,578.50
4. Step 4: Simplify right side
   31,985,527.50x = 4,771,711,851,423,662
5. Step 5: Solve for x
   x = 4,771,711,851,423,662/31,985,527.50
6. Step 6: Final answer
   x = 149,183,465.91