Finding the Third Proportional to 85,563,537 and 186,806,404.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,563,537 : 186,806,404.50 = 186,806,404.50 : x
2. Step 2: Convert to fraction form
   85,563,537/186,806,404.50 = 186,806,404.50/x
3. Step 3: Cross multiply
   85,563,537x = 186,806,404.50 × 186,806,404.50
4. Step 4: Simplify right side
   85,563,537x = 34,896,632,762,217,620
5. Step 5: Solve for x
   x = 34,896,632,762,217,620/85,563,537
6. Step 6: Final answer
   x = 407,844,672.93