Finding the Third Proportional to 69,923,484 and 109,689,310.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,923,484 : 109,689,310.50 = 109,689,310.50 : x
2. Step 2: Convert to fraction form
   69,923,484/109,689,310.50 = 109,689,310.50/x
3. Step 3: Cross multiply
   69,923,484x = 109,689,310.50 × 109,689,310.50
4. Step 4: Simplify right side
   69,923,484x = 12,031,744,837,965,410
5. Step 5: Solve for x
   x = 12,031,744,837,965,410/69,923,484
6. Step 6: Final answer
   x = 172,070,156.54