Finding the Third Proportional to 446,762,336.50 and 688,985,051.50

Step by Step Solution

1. Step 1: Write the proportion equation
   446,762,336.50 : 688,985,051.50 = 688,985,051.50 : x
2. Step 2: Convert to fraction form
   446,762,336.50/688,985,051.50 = 688,985,051.50/x
3. Step 3: Cross multiply
   446,762,336.50x = 688,985,051.50 × 688,985,051.50
4. Step 4: Simplify right side
   446,762,336.50x = 474,700,401,190,457,664
5. Step 5: Solve for x
   x = 474,700,401,190,457,664/446,762,336.50
6. Step 6: Final answer
   x = 1,062,534,511.99